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EUVD-2026-212168

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 06:47

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

JSON

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{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T06:47:32.501662+00:00",
  "id": "EUVD-2026-212168"
}

CVE-2025-21600 (GCVE-0-2025-21600)

Vulnerability from cvelistv5 – Published: 2025-01-09 16:49 – Updated: 2025-01-27 22:00

Title

Junos OS and Junos OS Evolved: With certain BGP options enabled, receipt of specifically malformed BGP update causes RPD crash

Summary

An Out-of-Bounds Read vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, logically adjacent BGP peer sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects systems configured in either of two ways: * systems with BGP traceoptions enabled * systems with BGP family traffic-engineering (BGP-LS) configured and can be exploited from a directly connected and configured BGP peer. This issue affects iBGP and eBGP with any address family configured, and both IPv4 and IPv6 are affected by this vulnerability. This issue affects: Junos OS: * from 21.4 before 21.4R3-S9, * from 22.2 before 22.2R3-S5, * from 22.3 before 22.3R3-S4, * from 22.4 before 22.4R3-S5, * from 23.2 before 23.2R2-S3, * from 23.4 before 23.4R2-S3, * from 24.2 before 24.2R1-S2, 24.2R2; Junos OS Evolved: * from 21.4-EVO before 21.4R3-S9-EVO, * from 22.2-EVO before 22.2R3-S5-EVO, * from 22.3-EVO before 22.3R3-S4-EVO, * from 22.4-EVO before 22.4R3-S5-EVO, * from 23.2-EVO before 23.2R2-S3-EVO, * from 23.4-EVO before 23.4R2-S2-EVO, * from 24.2-EVO before 24.2R1-S2-EVO, 24.2R2-EVO. This issue does not affect versions of Junos OS prior to 21.3R1. This issue does not affect versions of Junos OS Evolved prior to 21.3R1-EVO. This is a similar, but different vulnerability than the issue reported as CVE-2024-39516.

Severity

6.5 (Medium)


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

7.1 (High)


                        
                          CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:N/R:A/V:C/RE:M/U:Green

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-09 19:17 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

juniper mitre root Scorecard

References

1 reference

URL	Tags
https://supportportal.juniper.net/JSA92870	vendor-advisory

Impacted products

2 products

Vendor	Product	Version
Juniper Networks	Junos OS	Affected: 21.4 , < 21.4R3-S9 (semver) Affected: 22.2 , < 22.2R3-S5 (semver) Affected: 22.3 , < 22.3R3-S4 (semver) Affected: 22.4 , < 22.4R3-S5 (semver) Affected: 23.2 , < 23.2R2-S3 (semver) Affected: 23.4 , < 23.4R2-S3 (semver) Affected: 24.2 , < 24.2R1-S2, 24.2R2 (semver) Unaffected: 0 , < 21.3R1 (semver)
Juniper Networks	Junos OS Evolved	Affected: 21.4-EVO , < 21.4R3-S9-EVO (semver) Affected: 22.2-EVO , < 22.2R3-S5-EVO (semver) Affected: 22.3-EVO , < 22.3R3-S4-EVO (semver) Affected: 22.4-EVO , < 22.4R3-S5-EVO (semver) Affected: 23.2-EVO , < 23.2R2-S3-EVO (semver) Affected: 23.4-EVO , < 23.4R2-S2-EVO (semver) Affected: 24.2-EVO , < 24.2R1-S2-EVO, 24.2R2-EVO (semver) Unaffected: 0 , < 21.3R1-EVO (semver)

Date Public

2025-01-08 17:00

Credits

Juniper SIRT would like to acknowledge and thank Craig Dods from Meta’s Infrastructure Security Engineering team for responsibly reporting this vulnerability.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-21600",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-01-09T19:17:42.343288Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-01-09T19:21:59.704Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "21.4R3-S9",
              "status": "affected",
              "version": "21.4",
              "versionType": "semver"
            },
            {
              "lessThan": "22.2R3-S5",
              "status": "affected",
              "version": "22.2",
              "versionType": "semver"
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            {
              "lessThan": "22.3R3-S4",
              "status": "affected",
              "version": "22.3",
              "versionType": "semver"
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              "status": "affected",
              "version": "22.4",
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            {
              "lessThan": "23.2R2-S3",
              "status": "affected",
              "version": "23.2",
              "versionType": "semver"
            },
            {
              "lessThan": "23.4R2-S3",
              "status": "affected",
              "version": "23.4",
              "versionType": "semver"
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            {
              "lessThan": "24.2R1-S2, 24.2R2",
              "status": "affected",
              "version": "24.2",
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            {
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              "status": "unaffected",
              "version": "0",
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        },
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          "defaultStatus": "unaffected",
          "product": "Junos OS Evolved",
          "vendor": "Juniper Networks",
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            },
            {
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              "version": "22.3-EVO",
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            },
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              "status": "affected",
              "version": "22.4-EVO",
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              "status": "affected",
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              "lessThan": "24.2R1-S2-EVO, 24.2R2-EVO",
              "status": "affected",
              "version": "24.2-EVO",
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            },
            {
              "lessThan": "21.3R1-EVO",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "One of the following traceoptions configurations, either at the top level, under [logical-systems], or [routing-instances], is required to be potentially exposed to this issue:\u003cbr\u003e\u003cbr\u003e\u003ctt\u003e[protocols bgp traceoptions packets detail]\u003cbr\u003e[protocols bgp traceoptions update detail]\u003cbr\u003e\u003c/tt\u003e\u003ctt\u003e[protocols bgp group \u0026lt;group-name\u0026gt; traceoptions packets detail]\u003cbr\u003e\u003c/tt\u003e\u003ctt\u003e[protocols bgp group \u0026lt;group-name\u0026gt; traceoptions update detail]\u003cbr\u003e\u003ctt\u003e[protocols bgp group \u0026lt;group-name\u0026gt; neighbor \u0026lt;address\u0026gt; traceoptions packets detail]\u003c/tt\u003e\u003cbr\u003e[protocols bgp group \u0026lt;group-name\u0026gt; neighbor \u0026lt;address\u0026gt; traceoptions update detail]\u003c/tt\u003e\u003cbr\u003e\u003cbr\u003e\n\nSystems configured with BGP traffic engineering are also vulnerable to this issue:\u003cbr\u003e\u003cbr\u003e\u003ctt\u003e[protocols bgp group \u0026lt;name\u0026gt; family traffic-engineering unicast]\u003c/tt\u003e"
            }
          ],
          "value": "One of the following traceoptions configurations, either at the top level, under [logical-systems], or [routing-instances], is required to be potentially exposed to this issue:\n\n[protocols bgp traceoptions packets detail]\n[protocols bgp traceoptions update detail]\n[protocols bgp group \u003cgroup-name\u003e traceoptions packets detail]\n[protocols bgp group \u003cgroup-name\u003e traceoptions update detail]\n[protocols bgp group \u003cgroup-name\u003e neighbor \u003caddress\u003e traceoptions packets detail]\n[protocols bgp group \u003cgroup-name\u003e neighbor \u003caddress\u003e traceoptions update detail]\n\n\n\nSystems configured with BGP traffic engineering are also vulnerable to this issue:\n\n[protocols bgp group \u003cname\u003e family traffic-engineering unicast]"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Juniper SIRT would like to acknowledge and thank Craig Dods from Meta\u2019s Infrastructure Security Engineering team for responsibly reporting this vulnerability."
        }
      ],
      "datePublic": "2025-01-08T17:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "An Out-of-Bounds Read vulnerability in\n\nthe routing protocol daemon (rpd) of \n\n Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, logically adjacent BGP peer sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.\u003cbr\u003e\u003cbr\u003e\n\nThis issue only affects systems configured in\n      either of two ways:\u003cbr\u003e\n    \n    \u003col\u003e\n      \u003cli\u003esystems with BGP traceoptions enabled\u003c/li\u003e\n      \u003cli\u003esystems with BGP family traffic-engineering (BGP-LS)\n          configured\u003c/li\u003e\u003c/ol\u003e\n\n and can be exploited from a directly connected and configured BGP peer.\u0026nbsp;\u003cbr\u003e\u003cbr\u003eThis issue affects iBGP and eBGP \n\nwith \n\nany address family\n\n configured, and both IPv4 and IPv6 are affected by this vulnerability.\u003cbr\u003e\u003cbr\u003e\u003cp\u003eThis issue affects:\u003c/p\u003e\u003cp\u003eJunos OS:\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003e\n\nfrom 21.4 before 21.4R3-S9,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.2 before 22.2R3-S5,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.3 before 22.3R3-S4,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.4 before 22.4R3-S5,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.2 before 23.2R2-S3,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.4 before 23.4R2-S3,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 24.2 before 24.2R1-S2, 24.2R2;\u0026nbsp;\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eJunos OS Evolved:\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003efrom 21.4-EVO before 21.4R3-S9-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.2-EVO before 22.2R3-S5-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.3-EVO before 22.3R3-S4-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.4-EVO before 22.4R3-S5-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.2-EVO before 23.2R2-S3-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.4-EVO before 23.4R2-S2-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 24.2-EVO before 24.2R1-S2-EVO, 24.2R2-EVO.\u003c/li\u003e\u003c/ul\u003eThis issue does not affect versions of Junos OS prior to 21.3R1.\u003cbr\u003e\n\nThis issue does not affect versions of Junos OS Evolved prior to 21.3R1-EVO.\n\n\u003cbr\u003e\u003cbr\u003eThis is a similar, but different vulnerability than the issue reported as CVE-2024-39516.\u003cp\u003e\u003c/p\u003e\u003cbr\u003e"
            }
          ],
          "value": "An Out-of-Bounds Read vulnerability in\n\nthe routing protocol daemon (rpd) of \n\n Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, logically adjacent BGP peer sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.\n\n\n\nThis issue only affects systems configured in\n      either of two ways:\n\n    \n    \n        *  systems with BGP traceoptions enabled\n\n        *  systems with BGP family traffic-engineering (BGP-LS)\n          configured\n\n\n and can be exploited from a directly connected and configured BGP peer.\u00a0\n\nThis issue affects iBGP and eBGP \n\nwith \n\nany address family\n\n configured, and both IPv4 and IPv6 are affected by this vulnerability.\n\nThis issue affects:\n\nJunos OS:\u00a0\n\n\n\n  *  \n\nfrom 21.4 before 21.4R3-S9,\u00a0\n  *  from 22.2 before 22.2R3-S5,\u00a0\n  *  from 22.3 before 22.3R3-S4,\u00a0\n  *  from 22.4 before 22.4R3-S5,\u00a0\n  *  from 23.2 before 23.2R2-S3,\u00a0\n  *  from 23.4 before 23.4R2-S3,\u00a0\n  *  from 24.2 before 24.2R1-S2, 24.2R2;\u00a0\n\n\n\n\nJunos OS Evolved:\u00a0\n\n\n\n  *  from 21.4-EVO before 21.4R3-S9-EVO,\u00a0\n  *  from 22.2-EVO before 22.2R3-S5-EVO,\u00a0\n  *  from 22.3-EVO before 22.3R3-S4-EVO,\u00a0\n  *  from 22.4-EVO before 22.4R3-S5-EVO,\u00a0\n  *  from 23.2-EVO before 23.2R2-S3-EVO,\u00a0\n  *  from 23.4-EVO before 23.4R2-S2-EVO,\u00a0\n  *  from 24.2-EVO before 24.2R1-S2-EVO, 24.2R2-EVO.\n\n\nThis issue does not affect versions of Junos OS prior to 21.3R1.\n\n\nThis issue does not affect versions of Junos OS Evolved prior to 21.3R1-EVO.\n\n\n\nThis is a similar, but different vulnerability than the issue reported as CVE-2024-39516."
        }
      ],
      "exploits": [
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          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
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          ],
          "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
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              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
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          "cvssV4_0": {
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            "Recovery": "AUTOMATIC",
            "Safety": "NOT_DEFINED",
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            "attackRequirements": "NONE",
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            "baseScore": 7.1,
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            "providerUrgency": "GREEN",
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            "valueDensity": "CONCENTRATED",
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            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
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            "vulnerabilityResponseEffort": "MODERATE"
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          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
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      "problemTypes": [
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          "descriptions": [
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      "providerMetadata": {
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      "solutions": [
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          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "The following software releases have been updated to resolve this specific issue: \u003cbr\u003eJunos OS: 21.4R3-S9, 22.2R3-S5, 22.3R3-S4, 22.4R3-S5, 23.2R2-S3, 23.4R2-S3, 24.2R1-S2, 24.2R2, 24.4R1, and all subsequent releases.\u003cbr\u003eJunos OS Evolved: 21.4R3-S9-EVO, 22.2R3-S5-EVO, 22.3R3-S4-EVO, 22.4R3-S5-EVO, 23.2R2-S3-EVO, 23.4R2-S2-EVO, 24.2R1-S2-EVO, 24.2R2-EVO, 24.4R1-EVO, and all subsequent releases.\u003cbr\u003e"
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      "title": "Junos OS and Junos OS Evolved: With certain BGP options enabled, receipt of specifically malformed BGP update causes RPD crash",
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              "type": "text/html",
              "value": "If BGP traceoptions are enabled, and traffic engineering is not configured, disable BGP traceoptions if they are not being used for active troubleshooting."
            }
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          "value": "If BGP traceoptions are enabled, and traffic engineering is not configured, disable BGP traceoptions if they are not being used for active troubleshooting."
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    "assignerShortName": "juniper",
    "cveId": "CVE-2025-21600",
    "datePublished": "2025-01-09T16:49:42.367Z",
    "dateReserved": "2024-12-26T14:47:11.669Z",
    "dateUpdated": "2025-01-27T22:00:26.801Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.
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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

EUVD-2026-212168

CVE-2025-21600 (GCVE-0-2025-21600)

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