CVE-2026-63834

🗓️ 19 Jul 2026 12:02:26Reported by LinuxType

CVE-2026-63834: batman-adv tp_meter limits unacked_list size and drops highest seqno when full.

Reporter	Title	Published	Views	Family All 12
ATTACKERKB	CVE-2026-63834	19 Jul 202612:02	–	attackerkb
Circl	CVE-2026-63834	19 Jul 202616:40	–	circl
Cvelist	CVE-2026-63834 batman-adv: tp_meter: restrict number of unacked list entries	19 Jul 202612:02	–	cvelist
EUVD	EUVD-2026-45500	19 Jul 202612:02	–	euvd
NVD	CVE-2026-63834	19 Jul 202612:16	–	nvd
OSV	CVE-2026-63834 batman-adv: tp_meter: restrict number of unacked list entries	19 Jul 202612:02	–	osv
OSV	DEBIAN-CVE-2026-63834	19 Jul 202612:16	–	osv
OSV	UBUNTU-CVE-2026-63834	20 Jul 202600:00	–	osv
Positive Technologies	PT-2026-61150	19 Jul 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-63834	20 Jul 202617:30	–	redhatcve

Vulners

CNA

Node

linux linux_kernelRange4.8–5.10.260

linux linux_kernelRange5.11.0–5.15.211

linux linux_kernelRange5.16.0–6.1.177

linux linux_kernelRange6.2.0–6.6.144

linux linux_kernelRange6.7.0–6.12.95

linux linux_kernelRange6.13.0–6.18.38

linux linux_kernelRange6.19.0–7.1.3

linux linux_kernelRange7.2.0–7.2-rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/batman-adv/tp_meter.c",
      "net/batman-adv/types.h"
    ],
    "versions": [
      {
        "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
        "lessThan": "31a88792bfba142be3c9521538c1db805677381f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
        "lessThan": "1111a3381bca2d1f084a07686bc783af5ab23df7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
        "lessThan": "1c616b0be4bd8399d485e25e91859373b95d6013",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
        "lessThan": "f8c499fd275e59203b77fca76ae6ef2d096c2133",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
        "lessThan": "c6231d628d06d841bc1617b2f7034f5f39876b16",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
        "lessThan": "2233787658db859f0a9b83cb397cf783bb8be865",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
        "lessThan": "1fb8762600a393d1caccd63be5d07e1756982d68",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "33a3bb4a3345bb511f9c69c913da95d4693e2a4e",
        "lessThan": "e7c775110e1858e5a7471a23a9c9658c0af9df89",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/batman-adv/tp_meter.c",
      "net/batman-adv/types.h"
    ],
    "versions": [
      {
        "version": "4.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.8",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.260",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.211",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.177",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.144",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.95",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.38",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.3",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/c6231d628d06d841bc1617b2f7034f5f39876b16
git	www.git.kernel.org/stable/c/1fb8762600a393d1caccd63be5d07e1756982d68
git	www.git.kernel.org/stable/c/f8c499fd275e59203b77fca76ae6ef2d096c2133
git	www.git.kernel.org/stable/c/e7c775110e1858e5a7471a23a9c9658c0af9df89
git	www.git.kernel.org/stable/c/1c616b0be4bd8399d485e25e91859373b95d6013
git	www.git.kernel.org/stable/c/1111a3381bca2d1f084a07686bc783af5ab23df7
git	www.git.kernel.org/stable/c/2233787658db859f0a9b83cb397cf783bb8be865
git	www.git.kernel.org/stable/c/31a88792bfba142be3c9521538c1db805677381f

19 Jul 2026 12:16Current

5.5Medium risk

Vulners AI Score5.5