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CVE-2026-129456 frr: bgpd use-after-free of Tunnel Encapsulation sub-TLVs after a malformed attribute length from a peer

🗓️ 14 Nov 2026 19:13:23Reported by NetDEFType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Use-after-free in FRRouting bgpd via malformed Tunnel Encapsulation sub-TLVs causes DoS.

Related
Affected
Refs
[
  {
    "defaultStatus": "unaffected",
    "modules": [
      "bgpd"
    ],
    "product": "frrouting",
    "programFiles": [
      "bgpd/bgp_attr.c"
    ],
    "programRoutines": [
      {
        "name": "bgp_attr_encap"
      },
      {
        "name": "encap_unintern"
      }
    ],
    "repo": "https://github.com/FRRouting/frr/",
    "vendor": "frrouting",
    "versions": [
      {
        "changes": [
          {
            "at": "1238ac4a06e5c23595e8bf626856f297d0c302a2",
            "status": "unaffected"
          }
        ],
        "lessThan": "*",
        "status": "affected",
        "version": "f4c89855b594d4b32bb3610537703215c978440e",
        "versionType": "git"
      },
      {
        "lessThan": "10.4.4",
        "status": "affected",
        "version": "10.4.0",
        "versionType": "semver"
      },
      {
        "lessThan": "10.5.4",
        "status": "affected",
        "version": "10.5.0",
        "versionType": "semver"
      }
    ]
  }
]

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