Vulnerability-Lookup

BDU:2026-15713 (CVE-2026-76504)

Vulnerability from fstec – Published: 2026-10-01 – Updated: 2026-10-02 – View on bdu.fstec.ru Exploit exists Yes Fixed

Title

Уязвимость прикладного программного интерфейса централизованной системы управления сетью Cisco Catalyst SD-WAN Manager, позволяющая нарушителю обойти существующие механизмы безопасности и получить несанкционированный доступ к защищаемой информации

Summary

Уязвимость прикладного программного интерфейса централизованной системы управления сетью Cisco Catalyst SD-WAN Manager связана с неправильной обработкой данных с кодированием URL. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, обойти существующие механизмы безопасности и получить несанкционированный доступ к защищаемой информации путем отправки специально сформированного HTTP-запроса

Severity

10.0 (High) CVSS 2.0


                      
                        AV:N/AC:L/Au:N/C:C/I:C/A:C

9.8 (Critical) CVSS 3.1


                      
                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Yes

Remediation

Software update

CWE

CWE-177 - Неправильная обработка данных с кодированием URL (Hex шифрование)

Aliases

CVE-2026-76504, CISCO-SA-SDWAN-WEBAUTH-XR8BEUUU

References

3 references

URL
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/c…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76504
https://www.rapid7.com/blog/post/etr-critical-cisco-catalyst-sd-wan-manager-api…

Impacted products

1 product from 2 vendors

Vendors

Cisco Systems, Inc.

Products

Catalyst SD-WAN Manager

Versions

20.9.3.2 (Catalyst SD-WAN Manager), 20.11.1.2 (Catalyst SD-WAN Manager), 17.2.6 (Catalyst SD-WAN Manager), 17.2.7 (Catalyst SD-WAN Manager), 17.2.8 (Catalyst SD-WAN Manager), 17.2.9 (Catalyst SD-WAN Manager), 17.2.10 (Catalyst SD-WAN Manager), 17.2.4 (Catalyst SD-WAN Manager), 17.2.5 (Catalyst SD-WAN Manager), 18.3.1.1 (Catalyst SD-WAN Manager), 18.3.3.1 (Catalyst SD-WAN Manager), 18.3.3 (Catalyst SD-WAN Manager), 18.3.4 (Catalyst SD-WAN Manager), 18.3.5 (Catalyst SD-WAN Manager), 18.3.7 (Catalyst SD-WAN Manager), 18.3.8 (Catalyst SD-WAN Manager), 18.3.6 (Catalyst SD-WAN Manager), 18.3.6.1 (Catalyst SD-WAN Manager), 18.3.1 (Catalyst SD-WAN Manager), 18.3.0 (Catalyst SD-WAN Manager), 18.4.0.1 (Catalyst SD-WAN Manager), 18.4.3 (Catalyst SD-WAN Manager), 18.4.302 (Catalyst SD-WAN Manager), 18.4.303 (Catalyst SD-WAN Manager), 18.4.4 (Catalyst SD-WAN Manager), 18.4.5 (Catalyst SD-WAN Manager), 18.4.0 (Catalyst SD-WAN Manager), 18.4.1 (Catalyst SD-WAN Manager), 18.4.501_ES (Catalyst SD-WAN Manager), 18.4.6 (Catalyst SD-WAN Manager), 19.2.0 (Catalyst SD-WAN Manager), 19.2.097 (Catalyst SD-WAN Manager), 19.2.099 (Catalyst SD-WAN Manager), 19.2.1 (Catalyst SD-WAN Manager), 19.2.2 (Catalyst SD-WAN Manager), 19.2.3 (Catalyst SD-WAN Manager), 19.2.098 (Catalyst SD-WAN Manager), 19.2.31 (Catalyst SD-WAN Manager), 19.2.929 (Catalyst SD-WAN Manager), 19.2.32 (Catalyst SD-WAN Manager), 19.2.4 (Catalyst SD-WAN Manager), 19.2.4.0.1 (Catalyst SD-WAN Manager), 19.2.4.0.8 (Catalyst SD-WAN Manager), 19.2.4.0.9 (Catalyst SD-WAN Manager), 20.1.1.1 (Catalyst SD-WAN Manager), 20.1.12 (Catalyst SD-WAN Manager), 20.1.1 (Catalyst SD-WAN Manager), 20.1.2 (Catalyst SD-WAN Manager), 20.1.2_937 (Catalyst SD-WAN Manager), 20.1.3 (Catalyst SD-WAN Manager), 20.1.3.1 (Catalyst SD-WAN Manager), 19.3.0 (Catalyst SD-WAN Manager), 19.1.0 (Catalyst SD-WAN Manager), 19.0.0 (Catalyst SD-WAN Manager), 18.2.0 (Catalyst SD-WAN Manager), 20.3.1 (Catalyst SD-WAN Manager), 20.3.2 (Catalyst SD-WAN Manager), 20.3.2_925 (Catalyst SD-WAN Manager), 20.3.2.1 (Catalyst SD-WAN Manager), 20.3.2.1_927 (Catalyst SD-WAN Manager), 20.3.2_928 (Catalyst SD-WAN Manager), 20.3.2_929 (Catalyst SD-WAN Manager), 20.3.2.1_930 (Catalyst SD-WAN Manager), 20.3.3 (Catalyst SD-WAN Manager), 20.3.2_937 (Catalyst SD-WAN Manager), 20.3.3.1 (Catalyst SD-WAN Manager), 20.3.3.0.4 (Catalyst SD-WAN Manager), 20.3.3.1.1 (Catalyst SD-WAN Manager), 20.3.3.1.2 (Catalyst SD-WAN Manager), 20.3.3.0.2 (Catalyst SD-WAN Manager), 20.3.3.1.5 (Catalyst SD-WAN Manager), 20.3.3.1.7 (Catalyst SD-WAN Manager), 20.3.3.0.8 (Catalyst SD-WAN Manager), 20.3.3.1.10 (Catalyst SD-WAN Manager), 20.3.3.0.14 (Catalyst SD-WAN Manager), 20.3.4 (Catalyst SD-WAN Manager), 20.3.2.0.5 (Catalyst SD-WAN Manager), 20.3.4.0.1 (Catalyst SD-WAN Manager), 20.3.4.0.5 (Catalyst SD-WAN Manager), 20.3.4.0.6 (Catalyst SD-WAN Manager), 20.3.3.0.16 (Catalyst SD-WAN Manager), 20.3.2.0.6 (Catalyst SD-WAN Manager), 20.3.3.0.17 (Catalyst SD-WAN Manager), 20.3.3.0.18 (Catalyst SD-WAN Manager), 20.3.4.1 (Catalyst SD-WAN Manager), 20.3.4.1.1 (Catalyst SD-WAN Manager), 20.3.4.2 (Catalyst SD-WAN Manager), 20.3.813 (Catalyst SD-WAN Manager), 20.3.4.0.19 (Catalyst SD-WAN Manager), 20.3.814 (Catalyst SD-WAN Manager), 20.3.4.2.1 (Catalyst SD-WAN Manager), 20.3.4.1.2 (Catalyst SD-WAN Manager), 20.3.4.0.9 (Catalyst SD-WAN Manager), 20.3.4.0.11 (Catalyst SD-WAN Manager), 20.3.4.0.20 (Catalyst SD-WAN Manager), 20.3.5 (Catalyst SD-WAN Manager), 20.3.4.2.2 (Catalyst SD-WAN Manager), 20.3.4.0.24 (Catalyst SD-WAN Manager), 20.3.5.0.7 (Catalyst SD-WAN Manager), 20.3.5.0.8 (Catalyst SD-WAN Manager), 20.3.5.0.9 (Catalyst SD-WAN Manager), 20.3.6 (Catalyst SD-WAN Manager), 20.3.7 (Catalyst SD-WAN Manager), 20.3.7.1 (Catalyst SD-WAN Manager), 20.3.4.0.25 (Catalyst SD-WAN Manager), 20.3.4.3 (Catalyst SD-WAN Manager), 20.3.3.2 (Catalyst SD-WAN Manager), 20.3.4.0.26 (Catalyst SD-WAN Manager), 20.3.5.1 (Catalyst SD-WAN Manager), 20.3.7.2 (Catalyst SD-WAN Manager), 20.3.8 (Catalyst SD-WAN Manager), 20.4.1 (Catalyst SD-WAN Manager), 20.4.1.0.1 (Catalyst SD-WAN Manager), 20.4.1.1 (Catalyst SD-WAN Manager), 20.4.1.2 (Catalyst SD-WAN Manager), 20.4.1.0.01 (Catalyst SD-WAN Manager), 20.4.1.0.02 (Catalyst SD-WAN Manager), 20.4.1.1.5 (Catalyst SD-WAN Manager), 20.4.2 (Catalyst SD-WAN Manager), 20.4.2.0.1 (Catalyst SD-WAN Manager), 20.4.2.0.2 (Catalyst SD-WAN Manager), 20.4.2.1.1 (Catalyst SD-WAN Manager), 20.4.2.2.1 (Catalyst SD-WAN Manager), 20.4.2.2 (Catalyst SD-WAN Manager), 20.4.2.1 (Catalyst SD-WAN Manager), 20.4.2.0.4 (Catalyst SD-WAN Manager), 20.4.2.2.2 (Catalyst SD-WAN Manager), 20.4.2.2.3 (Catalyst SD-WAN Manager), 20.4.2.2.4 (Catalyst SD-WAN Manager), 20.4.2.2.8 (Catalyst SD-WAN Manager), 20.4.2.3 (Catalyst SD-WAN Manager), 20.5.1 (Catalyst SD-WAN Manager), 20.5.1.0.1 (Catalyst SD-WAN Manager), 20.5.1.0.2 (Catalyst SD-WAN Manager), 20.5.1.2 (Catalyst SD-WAN Manager), 20.5.1.1 (Catalyst SD-WAN Manager), 20.6.1 (Catalyst SD-WAN Manager), 20.6.1.1 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20.9.9.2_LI_Images (Catalyst SD-WAN Manager), 20.10.1 (Catalyst SD-WAN Manager), 20.10.1_LI_Images (Catalyst SD-WAN Manager), 20.10.1.1 (Catalyst SD-WAN Manager), 20.10.1.2 (Catalyst SD-WAN Manager), 20.11.1_LI_Images (Catalyst SD-WAN Manager), 20.11.1.1 (Catalyst SD-WAN Manager), 20.12.1 (Catalyst SD-WAN Manager), 20.12.1_LI_Images (Catalyst SD-WAN Manager), 20.12.2 (Catalyst SD-WAN Manager), 20.12.2_LI_Images (Catalyst SD-WAN Manager), 20.12.3 (Catalyst SD-WAN Manager), 20.12.3.1 (Catalyst SD-WAN Manager), 20.12.4 (Catalyst SD-WAN Manager), 20.12.4.0.03 (Catalyst SD-WAN Manager), 20.12.4.0.4 (Catalyst SD-WAN Manager), 20.12.4_LI_Images (Catalyst SD-WAN Manager), 20.12.401 (Catalyst SD-WAN Manager), 20.12.4.1 (Catalyst SD-WAN Manager), 20.12.4.0.6 (Catalyst SD-WAN Manager), 20.12.4_Monthly_ES5 (Catalyst SD-WAN Manager), 20.12.5 (Catalyst SD-WAN Manager), 20.12.5.1.01 (Catalyst SD-WAN Manager), 20.12.5.1_LI_Images (Catalyst SD-WAN Manager), 20.12.5.2 (Catalyst SD-WAN Manager), 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26.1.2.1.01 (Catalyst SD-WAN Manager), 26.1.2.1_LI_Images (Catalyst SD-WAN Manager)

Product types

Микропрограммный код аппаратных компонентов компьютера

Mitigations

Использование рекомендаций производителя: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-webauth-xr8beuuU

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
  "CVSS 3.0": "AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Cisco Systems, Inc.",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "20.9.3.2 (Catalyst SD-WAN Manager), 20.11.1.2 (Catalyst SD-WAN Manager), 17.2.6 (Catalyst SD-WAN Manager), 17.2.7 (Catalyst SD-WAN Manager), 17.2.8 (Catalyst SD-WAN Manager), 17.2.9 (Catalyst SD-WAN Manager), 17.2.10 (Catalyst SD-WAN Manager), 17.2.4 (Catalyst SD-WAN Manager), 17.2.5 (Catalyst SD-WAN Manager), 18.3.1.1 (Catalyst SD-WAN Manager), 18.3.3.1 (Catalyst SD-WAN Manager), 18.3.3 (Catalyst SD-WAN Manager), 18.3.4 (Catalyst SD-WAN Manager), 18.3.5 (Catalyst SD-WAN Manager), 18.3.7 (Catalyst SD-WAN Manager), 18.3.8 (Catalyst SD-WAN Manager), 18.3.6 (Catalyst SD-WAN Manager), 18.3.6.1 (Catalyst SD-WAN Manager), 18.3.1 (Catalyst SD-WAN Manager), 18.3.0 (Catalyst SD-WAN Manager), 18.4.0.1 (Catalyst SD-WAN Manager), 18.4.3 (Catalyst SD-WAN Manager), 18.4.302 (Catalyst SD-WAN Manager), 18.4.303 (Catalyst SD-WAN Manager), 18.4.4 (Catalyst SD-WAN Manager), 18.4.5 (Catalyst SD-WAN Manager), 18.4.0 (Catalyst SD-WAN Manager), 18.4.1 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20.18.3.1 (Catalyst SD-WAN Manager), 26.1.1 (Catalyst SD-WAN Manager), 26.1.1_LI_Images (Catalyst SD-WAN Manager), 26.1.1.1 (Catalyst SD-WAN Manager), 26.1.1.1_LI_Images (Catalyst SD-WAN Manager), 26.1.1.2_LI_Images (Catalyst SD-WAN Manager), 20.9.10_LI_Images (Catalyst SD-WAN Manager), 20.9.10 (Catalyst SD-WAN Manager), 20.9.10.0.01 (Catalyst SD-WAN Manager), 20.9.10.1.01 (Catalyst SD-WAN Manager), 20.12.8 (Catalyst SD-WAN Manager), 20.12.8_LI_Images (Catalyst SD-WAN Manager), 20.12.8.1_LI_Images (Catalyst SD-WAN Manager), 20.12.8.1 (Catalyst SD-WAN Manager), 20.12.8.1.1 (Catalyst SD-WAN Manager), 20.12.8.2.01 (Catalyst SD-WAN Manager), 20.15.6 (Catalyst SD-WAN Manager), 20.15.6_LI_Images (Catalyst SD-WAN Manager), 20.15.6.1.01 (Catalyst SD-WAN Manager), 20.15.6.1_LI_Images (Catalyst SD-WAN Manager), 20.18.4 (Catalyst SD-WAN Manager), 20.18.4.0.5_PSIRTAUG (Catalyst SD-WAN Manager), 20.18.4.1.01 (Catalyst SD-WAN Manager), 26.1.2_LI_Images (Catalyst SD-WAN Manager), 26.1.2 (Catalyst 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  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f:\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-webauth-xr8beuuU",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "30.09.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "02.10.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "01.10.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-15713",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2026-76504, CISCO-SA-sdwan-webauth-xr8beuuU",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Catalyst SD-WAN Manager",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": null,
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u0438\u043a\u043b\u0430\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430 \u0446\u0435\u043d\u0442\u0440\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0435\u0442\u044c\u044e Cisco Catalyst SD-WAN Manager, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u0431\u043e\u0439\u0442\u0438 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u044b \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0421\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u0430\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0434\u0430\u043d\u043d\u044b\u0445 \u0441 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c URL (Hex \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u0435) (CWE-177)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u0438\u043a\u043b\u0430\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430 \u0446\u0435\u043d\u0442\u0440\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0435\u0442\u044c\u044e Cisco Catalyst SD-WAN Manager \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0439 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u0434\u0430\u043d\u043d\u044b\u0445 \u0441 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c URL. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u043e\u0431\u043e\u0439\u0442\u0438 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u044b \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u043f\u0443\u0442\u0435\u043c \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e HTTP-\u0437\u0430\u043f\u0440\u043e\u0441\u0430",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-webauth-xr8beuuU\nhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76504\nhttps://www.rapid7.com/blog/post/etr-critical-cisco-catalyst-sd-wan-manager-api-authentication-bypass-exploited-in-the-wild-cve-2026-76504/",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041c\u0438\u043a\u0440\u043e\u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0439 \u043a\u043e\u0434 \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u044b\u0445 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432 \u043a\u043e\u043c\u043f\u044c\u044e\u0442\u0435\u0440\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-177",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 10)\n\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 9,8)"
}

CISCO-SA-SDWAN-WEBAUTH-XR8BEUUU

Vulnerability from csaf_cisco - Published: 2026-09-30 13:00 - Updated: 2026-10-02 23:18

Summary

Cisco Catalyst SD-WAN Manager API Authentication Bypass Vulnerability

Scope

1 vulnerability in this advisory.

Open the full advisory

CVE-2026-76504 (GCVE-0-2026-76504)

Vulnerability from cvelistv5 – Published: 2026-09-30 13:04 – Updated: 2026-10-02 23:23

Title

Cisco Catalyst SD-WAN Manager System Account Authorization Bypass Vulnerability

Summary

A vulnerability in the API session-based authentication management of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to access an affected system with privileges of the admin user. This vulnerability is due to improper handling of URI encoding in an HTTP request, which allows the request to bypass an authentication rule that is intended to restrict access to a specific API endpoint. An attacker could exploit this vulnerability by sending a crafted HTTP request to the API of the affected system. A successful exploit could allow the attacker to bypass authentication and gain access to the API as the admin user.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: active Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-30 00:00 UTC

CWE

CWE-177 - Improper Handling of URL Encoding (Hex Encoding)

Assigner

cisco mitre root Scorecard

References

2 references

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco Catalyst SD-WAN Manager	Affected: 20.1.12 Affected: 19.2.1 Affected: 18.4.4 Affected: 18.4.5 Affected: 20.1.1.1 Affected: 20.1.1 Affected: 19.3.0 Affected: 19.2.2 Affected: 19.2.099 Affected: 18.3.6 Affected: 18.3.7 Affected: 19.2.0 Affected: 18.3.8 Affected: 19.0.0 Affected: 19.1.0 Affected: 18.4.302 Affected: 18.4.303 Affected: 19.2.097 Affected: 19.2.098 Affected: 17.2.10 Affected: 18.3.6.1 Affected: 19.0.1a Affected: 18.2.0 Affected: 18.4.3 Affected: 18.4.1 Affected: 17.2.8 Affected: 18.3.3.1 Affected: 18.4.0 Affected: 18.3.1 Affected: 17.2.6 Affected: 17.2.9 Affected: 18.3.4 Affected: 17.2.5 Affected: 18.3.1.1 Affected: 18.3.5 Affected: 18.4.0.1 Affected: 18.3.3 Affected: 17.2.7 Affected: 17.2.4 Affected: 18.3.0 Affected: 19.2.3 Affected: 18.4.501_ES Affected: 20.3.1 Affected: 20.1.2 Affected: 19.2.929 Affected: 19.2.31 Affected: 20.3.2 Affected: 19.2.32 Affected: 20.3.2_925 Affected: 20.3.2.1 Affected: 20.3.2.1_927 Affected: 18.4.6 Affected: 20.1.2_937 Affected: 20.4.1 Affected: 20.3.2_928 Affected: 20.3.2_929 Affected: 20.4.1.0.1 Affected: 20.3.2.1_930 Affected: 19.2.4 Affected: 20.5.0.1.1 Affected: 20.4.1.1 Affected: 20.3.3 Affected: 19.2.4.0.1 Affected: 20.3.2_937 Affected: 20.3.3.1 Affected: 20.5.1 Affected: 20.1.3 Affected: 20.3.3.0.4 Affected: 20.3.3.1.2 Affected: 20.3.3.1.1 Affected: 20.4.1.2 Affected: 20.3.3.0.2 Affected: 20.4.1.1.5 Affected: 20.4.1.0.01 Affected: 20.4.1.0.02 Affected: 20.3.3.1.7 Affected: 20.3.3.1.5 Affected: 20.5.1.0.1 Affected: 20.3.3.1.10 Affected: 20.3.3.0.8 Affected: 20.4.2 Affected: 20.4.2.0.1 Affected: 20.3.4 Affected: 20.3.3.0.14 Affected: 19.2.4.0.8 Affected: 19.2.4.0.9 Affected: 20.3.4.0.1 Affected: 20.3.2.0.5 Affected: 20.6.1 Affected: 20.5.1.0.2 Affected: 20.3.3.0.17 Affected: 20.6.1.1 Affected: 20.6.0.18.3 Affected: 20.3.2.0.6 Affected: 20.6.0.18.4 Affected: 20.4.2.0.2 Affected: 20.3.3.0.16 Affected: 20.3.4.0.5 Affected: 20.6.1.0.1 Affected: 20.3.4.0.6 Affected: 20.6.2 Affected: 20.7.1EFT2 Affected: 20.3.4.0.9 Affected: 20.3.4.0.11 Affected: 20.4.2.0.4 Affected: 20.3.3.0.18 Affected: 20.7.1 Affected: 20.6.2.1 Affected: 20.3.4.1 Affected: 20.5.1.1 Affected: 20.4.2.1 Affected: 20.4.2.1.1 Affected: 20.3.4.1.1 Affected: 20.3.813 Affected: 20.3.4.0.19 Affected: 20.4.2.2.1 Affected: 20.5.1.2 Affected: 20.3.4.2 Affected: 20.3.814 Affected: 20.4.2.2 Affected: 20.6.2.2 Affected: 20.3.4.2.1 Affected: 20.7.1.1 Affected: 20.3.4.1.2 Affected: 20.6.2.2.2 Affected: 20.3.4.0.20 Affected: 20.6.2.2.3 Affected: 20.4.2.2.2 Affected: 20.3.5 Affected: 20.6.2.0.4 Affected: 20.4.2.2.3 Affected: 20.3.4.0.24 Affected: 20.6.2.2.7 Affected: 20.6.3 Affected: 20.3.4.2.2 Affected: 20.4.2.2.4 Affected: 20.7.1.0.2 Affected: 20.8.1 Affected: 20.3.5.0.8 Affected: 20.3.5.0.9 Affected: 20.4.2.2.8 Affected: 20.3.5.0.7 Affected: 20.6.3.0.7 Affected: 20.6.3.0.5 Affected: 20.6.3.0.10 Affected: 20.6.3.0.2 Affected: 20.7.2 Affected: 20.9.1EFT2 Affected: 20.6.3.0.11 Affected: 20.6.3.1 Affected: 20.6.3.0.14 Affected: 20.6.4 Affected: 20.9.1 Affected: 20.6.3.0.19 Affected: 20.6.3.0.18 Affected: 20.3.6 Affected: 20.9.1.1 Affected: 20.6.3.0.23 Affected: 20.6.4.0.4 Affected: 20.6.3.0.25 Affected: 20.6.5 Affected: 20.6.3.0.27 Affected: 20.9.2 Affected: 20.9.2.1 Affected: 20.6.3.0.29 Affected: 20.6.3.0.31 Affected: 20.6.3.0.32 Affected: 20.10.1 Affected: 20.6.3.0.33 Affected: 20.9.2.0.01 Affected: 20.9.1_LI_Images Affected: 20.10.1_LI_Images Affected: 20.9.2_LI_Images Affected: 20.3.7 Affected: 20.9.3 Affected: 20.6.5.1 Affected: 20.11.1 Affected: 20.11.1_LI_Images Affected: 20.9.3_LI_ Images Affected: 20.6.3.1.1 Affected: 20.9.3.0.2 Affected: 20.6.5.1.2 Affected: 20.9.3.0.3 Affected: 20.4.2.3 Affected: 20.6.3.2 Affected: 20.6.4.1 Affected: 20.6.3.0.38 Affected: 20.6.3.0.39 Affected: 20.3.5.1 Affected: 20.3.4.3 Affected: 20.9.3.1 Affected: 20.3.3.2 Affected: 20.6.5.2 Affected: 20.3.7.1 Affected: 20.10.1.1 Affected: 20.6.5.2.1 Affected: 20.3.4.0.25 Affected: 20.6.2.2.4 Affected: 20.6.1.2 Affected: 20.11.1.1 Affected: 20.9.3.0.5 Affected: 20.3.4.0.26 Affected: 20.6.5.1.3 Affected: 20.6.3.0.40 Affected: 20.1.3.1 Affected: 20.9.2.2 Affected: 20.6.5.2.3 Affected: 20.6.5.1.4 Affected: 20.6.5.3 Affected: 20.6.3.0.41 Affected: 20.9.3.0.7 Affected: 20.6.5.1.5 Affected: 20.9.3.0.4 Affected: 20.6.4.0.19 Affected: 20.6.5.1.6 Affected: 20.9.3.0.8 Affected: 20.6.3.3 Affected: 20.3.7.2 Affected: 20.6.5.4 Affected: 20.6.5.1.7 Affected: 20.9.3.0.12 Affected: 20.6.4.2 Affected: 20.6.5.5 Affected: 20.9.3.2 Affected: 20.11.1.2 Affected: 20.6.3.4 Affected: 20.10.1.2 Affected: 20.6.5.1.9 Affected: 20.9.3.0.16 Affected: 20.6.3.0.45 Affected: 20.6.5.1.10 Affected: 20.9.3.0.17 Affected: 20.6.5.2.4 Affected: 20.6.4.0.21 Affected: 20.9.3.0.18 Affected: 20.6.3.0.46 Affected: 20.6.3.0.47 Affected: 20.9.2.3 Affected: 20.9.3.2_LI_Images Affected: 20.9.3.0.21 Affected: 20.9.3.0.20 Affected: 20.9.4_LI_Images Affected: 20.9.4 Affected: 20.6.5.1.11 Affected: 20.12.1 Affected: 20.12.1_LI_Images Affected: 20.6.5.1.13 Affected: 20.9.3.0.23 Affected: 20.6.5.2.8 Affected: 20.9.4.1 Affected: 20.9.4.1_LI_Images Affected: 20.9.3.0.25 Affected: 20.9.3.0.24 Affected: 20.6.5.1.14 Affected: 20.3.8 Affected: 20.6.6 Affected: 20.9.3.0.26 Affected: 20.6.3.0.51 Affected: 20.9.3.0.29 Affected: 20.12.2 Affected: 20.12.2_LI_Images Affected: 20.6.6.0.1 Affected: 20.13.1_LI_Images Affected: 20.9.4.0.4 Affected: 20.13.1 Affected: 20.9.4.1.1 Affected: 20.9.5 Affected: 20.9.5_LI_Images Affected: 20.12.3_LI_Images Affected: 20.12.3 Affected: 20.9.4.1.3 Affected: 20.6.7 Affected: 20.9.5.1 Affected: 20.9.5.1_LI_Images Affected: 20.9.4.1.6 Affected: 20.14.1 Affected: 20.14.1_LI_Images Affected: 20.9.5.2 Affected: 20.9.5.2.1 Affected: 20.9.5.2_LI_Images Affected: 20.12.3.1 Affected: 20.12.4 Affected: 20.15.1_LI_Images Affected: 20.15.1 Affected: 20.9.5.1.4 Affected: 20.9.5.2.7 Affected: 20.9.5.2.13 Affected: 20.9.6 Affected: 20.9.6_LI_Images Affected: 20.9.5.2.14 Affected: 20.6.8 Affected: 20.12.4.0.03 Affected: 20.16.1 Affected: 20.16.1_LI_Images Affected: 20.12.4_LI_Images Affected: 20.9.5.2.16 Affected: 20.12.4.0.4 Affected: 20.12.401 Affected: 20.9.5.3 Affected: 20.9.5.3_LI_Images Affected: 20.12.4.1_LI_Images Affected: 20.12.4.1 Affected: 20.9.5.2.21 Affected: 20.9.6.0.3 Affected: 20.12.4.0.6 Affected: 20.15.2_LI_Images Affected: 20.15.2 Affected: 20.12.4_Monthly_ES5 Affected: 20.12.5 Affected: 20.12.5_LI_Images Affected: 20.9.7_LI _Images Affected: 20.9.7 Affected: 20.15.3 Affected: 20.15.3_ LI _Images Affected: 20.12.501 Affected: 20.12.5.1_LI_Images Affected: 20.12.5.1 Affected: 20.12.5.2_LI_Images Affected: 20.12.5.2 Affected: 20.15.3.1 Affected: 20.15.4_LI_Images Affected: 20.15.4 Affected: 20.9.7.1_LI _Images Affected: 20.9.7.1 Affected: 20.18.1 Affected: 20.18.1_LI_Images Affected: 20.12.6_LI_Images Affected: 20.12.6 Affected: 20.12.5.1.01 Affected: 26.0.1 Affected: 20.9.8 Affected: 20.9.8_LI_Images Affected: 20.18.2 Affected: 20.15.4.1_LI_Images Affected: 20.15.4.1 Affected: 20.18.2_LI_Images Affected: 26.1.1 Affected: 26.1.1_LI_Images Affected: 20.18.2.1_LI_Images Affected: 20.18.2.1 Affected: 20.15.4.2_LI_Images Affected: 20.15.4.2 Affected: 20.12.6.1 Affected: 20.12.6.1_LI_Images Affected: 20.12.5.3 Affected: 20.12.5.3_LI_Images Affected: 20.9.8.2_LI_Images Affected: 20.9.8.2 Affected: 20.18.3 Affected: 20.18.3_LI_Images Affected: 20.15.5 Affected: 20.15.5_LI_Images Affected: 20.12.7 Affected: 20.12.7_LI_Images Affected: 20.9.9 Affected: 20.9.9_LI_Images Affected: 20.18.2.2 Affected: 20.18.2.2_LI_Images Affected: 20.12.5.4 Affected: 20.12.5.4_LI_ Images Affected: 20.12.7.1_LI_Images Affected: 20.12.6.2_LI_Images Affected: 20.12.7.1 Affected: 20.15.5.1 Affected: 20.15.4.3 Affected: 20.15.4.3_LI_Images Affected: 20.15.5.1_LI_Images Affected: 20.12.6.2 Affected: 20.15.5.2 Affected: 20.15.5.2_LI_Images Affected: 26.1.1.1_LI_Images Affected: 20.15.4.4 Affected: 20.15.4.4_LI_Images Affected: 26.1.1.1 Affected: 20.9.9.1_LI_Images Affected: 20.9.9.1 Affected: 20.18.3.1_LI_Images Affected: 20.18.3.1 Affected: 26.1.1.2 Affected: 26.1.1.2_LI_Images Affected: 20.15.4.5 Affected: 20.15.4.5_LI_Images Affected: 20.15.5.3 Affected: 20.15.5.3_LI_Images Affected: 20.12.7.2_LI_Images Affected: 20.12.7.2 Affected: 20.9.9.2 Affected: 20.9.9.2_LI_Images Affected: 20.15.6 Affected: 20.15.6_LI_Images Affected: 20.18.4_LI_Imagess Affected: 20.18.4 Affected: 20.12.8 Affected: 20.12.8_LI_Images Affected: 20.18.4_LI_Images Affected: 20.12.8.1 Affected: 20.12.8.1_LI_Images Affected: 20.9.10_LI_Images Affected: 20.9.10 Affected: 26.1.2_LI_Images Affected: 26.1.2 Affected: 20.15.6.0.5_PSIRTAUG Affected: 20.18.4.0.5_PSIRTAUG Affected: 20.12.8.1.1 Affected: 20.9.10.0.01 Affected: 26.1.2.0.02 Affected: 26.2.1_LI_Images Affected: 20.18.4.1.01 Affected: 26.1.2.1_LI_Images Affected: 20.15.6.1_LI_Images Affected: 20.18.4.1_LI_Images Affected: 20.9.10.1.01 Affected: 20.15.6.1.01 Affected: 26.1.2.1.01 Affected: 20.12.8.2.01

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-76504",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-30T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2026-09-30",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76504"
              },
              "type": "kev"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-01T03:55:35.195Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76504"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-09-30T00:00:00.000Z",
            "value": "CVE-2026-76504 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Cisco Catalyst SD-WAN Manager",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "20.1.12"
            },
            {
              "status": "affected",
              "version": "19.2.1"
            },
            {
              "status": "affected",
              "version": "18.4.4"
            },
            {
              "status": "affected",
              "version": "18.4.5"
            },
            {
              "status": "affected",
              "version": "20.1.1.1"
            },
            {
              "status": "affected",
              "version": "20.1.1"
            },
            {
              "status": "affected",
              "version": "19.3.0"
            },
            {
              "status": "affected",
              "version": "19.2.2"
            },
            {
              "status": "affected",
              "version": "19.2.099"
            },
            {
              "status": "affected",
              "version": "18.3.6"
            },
            {
              "status": "affected",
              "version": "18.3.7"
            },
            {
              "status": "affected",
              "version": "19.2.0"
            },
            {
              "status": "affected",
              "version": "18.3.8"
            },
            {
              "status": "affected",
              "version": "19.0.0"
            },
            {
              "status": "affected",
              "version": "19.1.0"
            },
            {
              "status": "affected",
              "version": "18.4.302"
            },
            {
              "status": "affected",
              "version": "18.4.303"
            },
            {
              "status": "affected",
              "version": "19.2.097"
            },
            {
              "status": "affected",
              "version": "19.2.098"
            },
            {
              "status": "affected",
              "version": "17.2.10"
            },
            {
              "status": "affected",
              "version": "18.3.6.1"
            },
            {
              "status": "affected",
              "version": "19.0.1a"
            },
            {
              "status": "affected",
              "version": "18.2.0"
            },
            {
              "status": "affected",
              "version": "18.4.3"
            },
            {
              "status": "affected",
              "version": "18.4.1"
            },
            {
              "status": "affected",
              "version": "17.2.8"
            },
            {
              "status": "affected",
              "version": "18.3.3.1"
            },
            {
              "status": "affected",
              "version": "18.4.0"
            },
            {
              "status": "affected",
              "version": "18.3.1"
            },
            {
              "status": "affected",
              "version": "17.2.6"
            },
            {
              "status": "affected",
              "version": "17.2.9"
            },
            {
              "status": "affected",
              "version": "18.3.4"
            },
            {
              "status": "affected",
              "version": "17.2.5"
            },
            {
              "status": "affected",
              "version": "18.3.1.1"
            },
            {
              "status": "affected",
              "version": "18.3.5"
            },
            {
              "status": "affected",
              "version": "18.4.0.1"
            },
            {
              "status": "affected",
              "version": "18.3.3"
            },
            {
              "status": "affected",
              "version": "17.2.7"
            },
            {
              "status": "affected",
              "version": "17.2.4"
            },
            {
              "status": "affected",
              "version": "18.3.0"
            },
            {
              "status": "affected",
              "version": "19.2.3"
            },
            {
              "status": "affected",
              "version": "18.4.501_ES"
            },
            {
              "status": "affected",
              "version": "20.3.1"
            },
            {
              "status": "affected",
              "version": "20.1.2"
            },
            {
              "status": "affected",
              "version": "19.2.929"
            },
            {
              "status": "affected",
              "version": "19.2.31"
            },
            {
              "status": "affected",
              "version": "20.3.2"
            },
            {
              "status": "affected",
              "version": "19.2.32"
            },
            {
              "status": "affected",
              "version": "20.3.2_925"
            },
            {
              "status": "affected",
              "version": "20.3.2.1"
            },
            {
              "status": "affected",
              "version": "20.3.2.1_927"
            },
            {
              "status": "affected",
              "version": "18.4.6"
            },
            {
              "status": "affected",
              "version": "20.1.2_937"
            },
            {
              "status": "affected",
              "version": "20.4.1"
            },
            {
              "status": "affected",
              "version": "20.3.2_928"
            },
            {
              "status": "affected",
              "version": "20.3.2_929"
            },
            {
              "status": "affected",
              "version": "20.4.1.0.1"
            },
            {
              "status": "affected",
              "version": "20.3.2.1_930"
            },
            {
              "status": "affected",
              "version": "19.2.4"
            },
            {
              "status": "affected",
              "version": "20.5.0.1.1"
            },
            {
              "status": "affected",
              "version": "20.4.1.1"
            },
            {
              "status": "affected",
              "version": "20.3.3"
            },
            {
              "status": "affected",
              "version": "19.2.4.0.1"
            },
            {
              "status": "affected",
              "version": "20.3.2_937"
            },
            {
              "status": "affected",
              "version": "20.3.3.1"
            },
            {
              "status": "affected",
              "version": "20.5.1"
            },
            {
              "status": "affected",
              "version": "20.1.3"
            },
            {
              "status": "affected",
              "version": "20.3.3.0.4"
            },
            {
              "status": "affected",
              "version": "20.3.3.1.2"
            },
            {
              "status": "affected",
              "version": "20.3.3.1.1"
            },
            {
              "status": "affected",
              "version": "20.4.1.2"
            },
            {
              "status": "affected",
              "version": "20.3.3.0.2"
            },
            {
              "status": "affected",
              "version": "20.4.1.1.5"
            },
            {
              "status": "affected",
              "version": "20.4.1.0.01"
            },
            {
              "status": "affected",
              "version": "20.4.1.0.02"
            },
            {
              "status": "affected",
              "version": "20.3.3.1.7"
            },
            {
              "status": "affected",
              "version": "20.3.3.1.5"
            },
            {
              "status": "affected",
              "version": "20.5.1.0.1"
            },
            {
              "status": "affected",
              "version": "20.3.3.1.10"
            },
            {
              "status": "affected",
              "version": "20.3.3.0.8"
            },
            {
              "status": "affected",
              "version": "20.4.2"
            },
            {
              "status": "affected",
              "version": "20.4.2.0.1"
            },
            {
              "status": "affected",
              "version": "20.3.4"
            },
            {
              "status": "affected",
              "version": "20.3.3.0.14"
            },
            {
              "status": "affected",
              "version": "19.2.4.0.8"
            },
            {
              "status": "affected",
              "version": "19.2.4.0.9"
            },
            {
              "status": "affected",
              "version": "20.3.4.0.1"
            },
            {
              "status": "affected",
              "version": "20.3.2.0.5"
            },
            {
              "status": "affected",
              "version": "20.6.1"
            },
            {
              "status": "affected",
              "version": "20.5.1.0.2"
            },
            {
              "status": "affected",
              "version": "20.3.3.0.17"
            },
            {
              "status": "affected",
              "version": "20.6.1.1"
            },
            {
              "status": "affected",
              "version": "20.6.0.18.3"
            },
            {
              "status": "affected",
              "version": "20.3.2.0.6"
            },
            {
              "status": "affected",
              "version": "20.6.0.18.4"
            },
            {
              "status": "affected",
              "version": "20.4.2.0.2"
            },
            {
              "status": "affected",
              "version": "20.3.3.0.16"
            },
            {
              "status": "affected",
              "version": "20.3.4.0.5"
            },
            {
              "status": "affected",
              "version": "20.6.1.0.1"
            },
            {
              "status": "affected",
              "version": "20.3.4.0.6"
            },
            {
              "status": "affected",
              "version": "20.6.2"
            },
            {
              "status": "affected",
              "version": "20.7.1EFT2"
            },
            {
              "status": "affected",
              "version": "20.3.4.0.9"
            },
            {
              "status": "affected",
              "version": "20.3.4.0.11"
            },
            {
              "status": "affected",
              "version": "20.4.2.0.4"
            },
            {
              "status": "affected",
              "version": "20.3.3.0.18"
            },
            {
              "status": "affected",
              "version": "20.7.1"
            },
            {
              "status": "affected",
              "version": "20.6.2.1"
            },
            {
              "status": "affected",
              "version": "20.3.4.1"
            },
            {
              "status": "affected",
              "version": "20.5.1.1"
            },
            {
              "status": "affected",
              "version": "20.4.2.1"
            },
            {
              "status": "affected",
              "version": "20.4.2.1.1"
            },
            {
              "status": "affected",
              "version": "20.3.4.1.1"
            },
            {
              "status": "affected",
              "version": "20.3.813"
            },
            {
              "status": "affected",
              "version": "20.3.4.0.19"
            },
            {
              "status": "affected",
              "version": "20.4.2.2.1"
            },
            {
              "status": "affected",
              "version": "20.5.1.2"
            },
            {
              "status": "affected",
              "version": "20.3.4.2"
            },
            {
              "status": "affected",
              "version": "20.3.814"
            },
            {
              "status": "affected",
              "version": "20.4.2.2"
            },
            {
              "status": "affected",
              "version": "20.6.2.2"
            },
            {
              "status": "affected",
              "version": "20.3.4.2.1"
            },
            {
              "status": "affected",
              "version": "20.7.1.1"
            },
            {
              "status": "affected",
              "version": "20.3.4.1.2"
            },
            {
              "status": "affected",
              "version": "20.6.2.2.2"
            },
            {
              "status": "affected",
              "version": "20.3.4.0.20"
            },
            {
              "status": "affected",
              "version": "20.6.2.2.3"
            },
            {
              "status": "affected",
              "version": "20.4.2.2.2"
            },
            {
              "status": "affected",
              "version": "20.3.5"
            },
            {
              "status": "affected",
              "version": "20.6.2.0.4"
            },
            {
              "status": "affected",
              "version": "20.4.2.2.3"
            },
            {
              "status": "affected",
              "version": "20.3.4.0.24"
            },
            {
              "status": "affected",
              "version": "20.6.2.2.7"
            },
            {
              "status": "affected",
              "version": "20.6.3"
            },
            {
              "status": "affected",
              "version": "20.3.4.2.2"
            },
            {
              "status": "affected",
              "version": "20.4.2.2.4"
            },
            {
              "status": "affected",
              "version": "20.7.1.0.2"
            },
            {
              "status": "affected",
              "version": "20.8.1"
            },
            {
              "status": "affected",
              "version": "20.3.5.0.8"
            },
            {
              "status": "affected",
              "version": "20.3.5.0.9"
            },
            {
              "status": "affected",
              "version": "20.4.2.2.8"
            },
            {
              "status": "affected",
              "version": "20.3.5.0.7"
            },
            {
              "status": "affected",
              "version": "20.6.3.0.7"
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            {
              "status": "affected",
              "version": "20.18.4_LI_Imagess"
            },
            {
              "status": "affected",
              "version": "20.18.4"
            },
            {
              "status": "affected",
              "version": "20.12.8"
            },
            {
              "status": "affected",
              "version": "20.12.8_LI_Images"
            },
            {
              "status": "affected",
              "version": "20.18.4_LI_Images"
            },
            {
              "status": "affected",
              "version": "20.12.8.1"
            },
            {
              "status": "affected",
              "version": "20.12.8.1_LI_Images"
            },
            {
              "status": "affected",
              "version": "20.9.10_LI_Images"
            },
            {
              "status": "affected",
              "version": "20.9.10"
            },
            {
              "status": "affected",
              "version": "26.1.2_LI_Images"
            },
            {
              "status": "affected",
              "version": "26.1.2"
            },
            {
              "status": "affected",
              "version": "20.15.6.0.5_PSIRTAUG"
            },
            {
              "status": "affected",
              "version": "20.18.4.0.5_PSIRTAUG"
            },
            {
              "status": "affected",
              "version": "20.12.8.1.1"
            },
            {
              "status": "affected",
              "version": "20.9.10.0.01"
            },
            {
              "status": "affected",
              "version": "26.1.2.0.02"
            },
            {
              "status": "affected",
              "version": "26.2.1_LI_Images"
            },
            {
              "status": "affected",
              "version": "20.18.4.1.01"
            },
            {
              "status": "affected",
              "version": "26.1.2.1_LI_Images"
            },
            {
              "status": "affected",
              "version": "20.15.6.1_LI_Images"
            },
            {
              "status": "affected",
              "version": "20.18.4.1_LI_Images"
            },
            {
              "status": "affected",
              "version": "20.9.10.1.01"
            },
            {
              "status": "affected",
              "version": "20.15.6.1.01"
            },
            {
              "status": "affected",
              "version": "26.1.2.1.01"
            },
            {
              "status": "affected",
              "version": "20.12.8.2.01"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the API session-based authentication management of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to access an affected system with privileges of the admin user.\r\n\r\nThis vulnerability is due to improper handling of URI encoding in an HTTP request, which allows the request to bypass an authentication rule that is intended to restrict access to a specific API endpoint. An attacker could exploit this vulnerability by sending a crafted HTTP request to the API of the affected system. A successful exploit could allow the attacker to bypass authentication and gain access to the API as the admin user."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "In September 2026, the Cisco PSIRT became aware of active exploitation of this vulnerability. Cisco strongly recommends that customers upgrade to a fixed software release to remediate this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-177",
              "description": "Improper Handling of URL Encoding (Hex Encoding)",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-02T23:23:29.275Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-sdwan-webauth-xr8beuuU",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-webauth-xr8beuuU"
        }
      ],
      "source": {
        "advisory": "cisco-sa-sdwan-webauth-xr8beuuU",
        "defects": [
          "CSCww79570"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Cisco Catalyst SD-WAN Manager System Account Authorization Bypass Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2026-76504",
    "datePublished": "2026-09-30T13:04:32.095Z",
    "dateReserved": "2026-08-19T12:02:03.641Z",
    "dateUpdated": "2026-10-02T23:23:29.275Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

BDU:2026-15713 (CVE-2026-76504)

CISCO-SA-SDWAN-WEBAUTH-XR8BEUUU

CVE-2026-76504 (GCVE-0-2026-76504)

Tags

Sightings

Nomenclature

Related by attack behaviour