KEV Entry

CVE-2026-20122

Known Exploited Vulnerability Entry CISA

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Entry Details
Confirmed Exploited

CVE-2026-20122

2026-04-20 02:00 CEST

Timestamps

2026-04-20

2026-04-20

Scope

Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability | Affected: Cisco / Catalyst SD-WAN Manger | Description: Cisco Catalyst SD-WAN Manager contains an incorrect use of privileged APIs vulnerability due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges. | Required action: Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available. | Due date: 2026-04-23 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): CISA Mitigation Instructions: https://www.cisa.gov/news-events/directives/ed-26-03-mitigate-vulnerabilities-cisco-sd-wan-systems ; https://www.cisa.gov/news-events/directives/supplemental-direction-ed-26-03-hunt-and-hardening-guidance-cisco-sd-wan-systems ; https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v ; https://nvd.nist.gov/vuln/detail/CVE-2026-20122

References
  • {'id': 'CVE-2026-20122', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-20122'}

b21d416f-dc47-4a30-a9b9-ee12e8aa62ee

CISA
405284c2-e461-4670-8979-7fd2c9755a60

2026-10-02 08:09 CEST

2026-10-02 08:09 CEST

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-648"
  ],
  "date_added": "2026-04-20",
  "due_date": "2026-04-23",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "Catalyst SD-WAN Manger",
  "vendorProject": "Cisco",
  "vulnerabilityName": "Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability"
}
 -
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