Vulnerability-Lookup

GHSA-QR7G-RJ69-5948

Vulnerability from github – Published: 2026-04-10 00:30 – Updated: 2026-04-10 00:30

Details

This issue affects Junos OS Evolved PTX Series:

All versions before 22.4R3-S8-EVO,
from 23.2 before 23.2R2-S5-EVO,
from 23.4 before 23.4R2-EVO,
from 24.2 before 24.2R2-EVO,
from 24.4 before 24.4R2-EVO.

This issue affects Junos OS Evolved on QFX5000 Series:

22.2-EVO version before 22.2R3-S7-EVO,
22.4-EVO version before 22.4R3-S7-EVO,
23.2-EVO versions before 23.2R2-S4-EVO,
23.4-EVO versions before 23.4R2-S5-EVO,
24.2-EVO versions before 24.2R2-S1-EVO,
24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO.

This issue does not affect Junos OS Evolved on QFX5000 Series versions before: 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and 22.1R1-EVO.

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:Y/R:U/V:C/RE:M/U:Amber

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-59969"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-09T22:16:24Z",
    "severity": "HIGH"
  },
  "details": "A Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027) vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).An attacker sending crafted multicast packets will cause line cards running evo-aftmand/evo-pfemand to crash and restart or non-line card devices to crash and restart.\u00a0Continued receipt and processing of these packets will sustain the Denial of Service (DoS) condition.\n\nThis issue affects Junos OS Evolved PTX Series:\n\n\n\n  *  All versions before 22.4R3-S8-EVO,\n  *  from 23.2 before 23.2R2-S5-EVO,\n  *  from 23.4 before 23.4R2-EVO,\n  *  from 24.2 before 24.2R2-EVO,\n  *  from 24.4 before\u00a024.4R2-EVO.\n\n\n\n\nThis issue affects Junos OS Evolved on QFX5000 Series:\n\n\n\n  *  22.2-EVO version before 22.2R3-S7-EVO,\n  *  22.4-EVO version before 22.4R3-S7-EVO,\n  *  23.2-EVO versions before 23.2R2-S4-EVO,\n  *  23.4-EVO versions before 23.4R2-S5-EVO, \n  *  24.2-EVO versions before 24.2R2-S1-EVO,\n  *  24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO.\n\n\nThis issue does not affect Junos OS Evolved on QFX5000 Series versions before: 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and 22.1R1-EVO.",
  "id": "GHSA-qr7g-rj69-5948",
  "modified": "2026-04-10T00:30:29Z",
  "published": "2026-04-10T00:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59969"
    },
    {
      "type": "WEB",
      "url": "https://kb.juniper.net/JSA103159"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:C/RE:M/U:Amber",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2025-59969 (GCVE-0-2025-59969)

Vulnerability from cvelistv5 – Published: 2026-04-09 21:25 – Updated: 2026-04-10 18:15

Title

Junos OS Evolved: QFX5000 Series and PTX Series: An attacker sending crafted multicast packets will cause evo-aftmand / evo-pfemand to crash and restart

Summary

A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).An attacker sending crafted multicast packets will cause line cards running evo-aftmand/evo-pfemand to crash and restart or non-line card devices to crash and restart. Continued receipt and processing of these packets will sustain the Denial of Service (DoS) condition. This issue affects Junos OS Evolved PTX Series: * All versions before 22.4R3-S8-EVO, * from 23.2 before 23.2R2-S5-EVO, * from 23.4 before 23.4R2-EVO, * from 24.2 before 24.2R2-EVO, * from 24.4 before 24.4R2-EVO. This issue affects Junos OS Evolved on QFX5000 Series: * 22.2-EVO version before 22.2R3-S7-EVO, * 22.4-EVO version before 22.4R3-S7-EVO, * 23.2-EVO versions before 23.2R2-S4-EVO, * 23.4-EVO versions before 23.4R2-S5-EVO, * 24.2-EVO versions before 24.2R2-S1-EVO, * 24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO. This issue does not affect Junos OS Evolved on QFX5000 Series versions before: 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and 22.1R1-EVO.

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:Y/R:U/V:C/RE:M/U:Amber

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-10 18:14 UTC

CWE

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Assigner

juniper CNA under the mitre root

CNA scorecard B 85/100 over 22 records in the last 180 days details

References

1 reference

URL	Tags
https://kb.juniper.net/JSA103159	vendor-advisory

Impacted products

2 products

Vendor	Product	Version
Juniper Networks	Junos OS Evolved	Affected: 0 , < 22.4R3-S8-EVO (semver) Affected: 23.2 , < 23.2R2-S5-EVO (semver) Affected: 23.4 , < 23.4R2-EVO (semver) Affected: 24.2 , < 24.2R2-EVO (semver) Affected: 24.4 , < 24.4R2-EVO (semver)
Juniper Networks	Junos OS Evolved	Affected: 22.2 , < 22.2R3-S7-EVO (semver) Affected: 22.4 , < 22.4R3-S7-EVO (semver) Affected: 23.2 , < 23.2R2-S4-EVO (semver) Affected: 23.4 , < 23.4R2-S5-EVO (semver) Affected: 24.2 , < 24.2R2-S1-EVO (semver) Affected: 24.4 , < 24.4R1-S3-EVO, 24.4R2-EVO (semver)

Date Public

2026-04-08 16:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-59969",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-10T18:14:54.287372Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-10T18:15:06.090Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "evo-aftmand"
          ],
          "platforms": [
            "PTX Series"
          ],
          "product": "Junos OS Evolved",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "22.4R3-S8-EVO",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "23.2R2-S5-EVO",
              "status": "affected",
              "version": "23.2",
              "versionType": "semver"
            },
            {
              "lessThan": "23.4R2-EVO",
              "status": "affected",
              "version": "23.4",
              "versionType": "semver"
            },
            {
              "lessThan": "24.2R2-EVO",
              "status": "affected",
              "version": "24.2",
              "versionType": "semver"
            },
            {
              "lessThan": "24.4R2-EVO",
              "status": "affected",
              "version": "24.4",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "modules": [
            "evo-pfemand"
          ],
          "platforms": [
            "QFX5000 Series"
          ],
          "product": "Junos OS Evolved",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "22.2R3-S7-EVO",
              "status": "affected",
              "version": "22.2",
              "versionType": "semver"
            },
            {
              "lessThan": "22.4R3-S7-EVO",
              "status": "affected",
              "version": "22.4",
              "versionType": "semver"
            },
            {
              "lessThan": "23.2R2-S4-EVO",
              "status": "affected",
              "version": "23.2",
              "versionType": "semver"
            },
            {
              "lessThan": "23.4R2-S5-EVO",
              "status": "affected",
              "version": "23.4",
              "versionType": "semver"
            },
            {
              "lessThan": "24.2R2-S1-EVO",
              "status": "affected",
              "version": "24.2",
              "versionType": "semver"
            },
            {
              "lessThan": "24.4R1-S3-EVO, 24.4R2-EVO",
              "status": "affected",
              "version": "24.4",
              "versionType": "semver"
            }
          ]
        }
      ],
      "configurations": [
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          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
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          "value": "Required Configuration for Exposure:\u00a0\n\n\u00a0 [ protocols mld ]\nor\n\u00a0 [ protocols pim ]"
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      "datePublic": "2026-04-08T16:00:00.000Z",
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              "value": "A Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027) vulnerability in the advanced forwarding toolkit (evo-aftmand/\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eevo-pfemand\u003c/span\u003e) of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).\u003cp\u003eAn attacker sending crafted multicast packets will cause line cards running evo-aftmand/evo-pfemand to crash and restart or non-line card devices to crash and restart.\u0026nbsp;\u003cspan style=\"background-color: rgba(255, 255, 255, 0.85);\"\u003eContinued receipt and processing of these packets will sustain the Denial of Service (DoS) condition.\u003c/span\u003e\u003c/p\u003e\u003cp\u003eThis issue affects Junos OS Evolved PTX Series:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions before 22.4R3-S8-EVO,\u003c/li\u003e\u003cli\u003efrom 23.2 before 23.2R2-S5-EVO,\u003c/li\u003e\u003cli\u003efrom 23.4 before 23.4R2-EVO,\u003c/li\u003e\u003cli\u003efrom 24.2 before 24.2R2-EVO,\u003c/li\u003e\u003cli\u003efrom 24.4 before\u0026nbsp;\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e24.4R2-EVO.\u003c/span\u003e\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eThis issue affects Junos OS Evolved on QFX5000 Series:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003e22.2-EVO version before 22.2R3-S7-EVO,\u003c/li\u003e\u003cli\u003e22.4-EVO version before 22.4R3-S7-EVO,\u003c/li\u003e\u003cli\u003e23.2-EVO versions before 23.2R2-S4-EVO,\u003c/li\u003e\u003cli\u003e23.4-EVO versions before 23.4R2-S5-EVO, \u003c/li\u003e\u003cli\u003e24.2-EVO versions before 24.2R2-S1-EVO,\u003c/li\u003e\u003cli\u003e24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO.\u003c/li\u003e\u003c/ul\u003eThis issue does not affect Junos OS Evolved on QFX5000 Series versions before: 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and 22.1R1-EVO.\u003cbr\u003e\u003cp\u003e\u003c/p\u003e"
            }
          ],
          "value": "A Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027) vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).An attacker sending crafted multicast packets will cause line cards running evo-aftmand/evo-pfemand to crash and restart or non-line card devices to crash and restart.\u00a0Continued receipt and processing of these packets will sustain the Denial of Service (DoS) condition.\n\nThis issue affects Junos OS Evolved PTX Series:\n\n\n\n  *  All versions before 22.4R3-S8-EVO,\n  *  from 23.2 before 23.2R2-S5-EVO,\n  *  from 23.4 before 23.4R2-EVO,\n  *  from 24.2 before 24.2R2-EVO,\n  *  from 24.4 before\u00a024.4R2-EVO.\n\n\n\n\nThis issue affects Junos OS Evolved on QFX5000 Series:\n\n\n\n  *  22.2-EVO version before 22.2R3-S7-EVO,\n  *  22.4-EVO version before 22.4R3-S7-EVO,\n  *  23.2-EVO versions before 23.2R2-S4-EVO,\n  *  23.4-EVO versions before 23.4R2-S5-EVO, \n  *  24.2-EVO versions before 24.2R2-S1-EVO,\n  *  24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO.\n\n\nThis issue does not affect Junos OS Evolved on QFX5000 Series versions before: 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and 22.1R1-EVO."
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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

GHSA-QR7G-RJ69-5948

CVE-2025-59969 (GCVE-0-2025-59969)

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Related by attack behaviour