CVE-2026-52998

🗓️ 24 Jun 2026 16:29:10Reported by LinuxType

Fix NULL dereference in ttl check for nfnetlink_osf by removing device access and interface loop; TTL uses switch on ttl_check.

Reporter	Title	Published	Views	Family All 11
ATTACKERKB	CVE-2026-52998	24 Jun 202616:29	–	attackerkb
Cvelist	CVE-2026-52998 netfilter: nfnetlink_osf: fix potential NULL dereference in ttl check	24 Jun 202616:29	–	cvelist
Debian CVE	CVE-2026-52998	24 Jun 202616:29	–	debiancve
EUVD	EUVD-2026-38866	24 Jun 202618:32	–	euvd
NVD	CVE-2026-52998	24 Jun 202617:17	–	nvd
OSV	DEBIAN-CVE-2026-52998	24 Jun 202617:17	–	osv
OSV	ECHO-9BCA-70CE-0318	25 Jun 202609:55	–	osv
OSV	UBUNTU-CVE-2026-52998	24 Jun 202617:17	–	osv
Positive Technologies	PT-2026-51892	24 Jun 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-52998	25 Jun 202623:07	–	redhatcve

Vulners

CNA

Node

linux linux_kernelRange2.6.31–5.10.258

linux linux_kernelRange5.11.0–5.15.209

linux linux_kernelRange5.16.0–6.1.175

linux linux_kernelRange6.2.0–6.6.141

linux linux_kernelRange6.7.0–6.12.91

linux linux_kernelRange6.13.0–6.18.33

linux linux_kernelRange6.19.0–7.0.10

linux linux_kernelRange7.1.0≥

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/nfnetlink_osf.c"
    ],
    "versions": [
      {
        "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
        "lessThan": "f4de0777e4554a7de19c920accde6319dd530782",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
        "lessThan": "c996a90f3071cf43683e5423da31aadbe002b8b4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
        "lessThan": "edc806f9122961f0d3819f7c69c14cccde31f277",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
        "lessThan": "5d05de2f0928d81309a815ecc76d1a3ad72cbc16",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
        "lessThan": "95be653a76793856ff8b2d8bd82c2943c23f5ca8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
        "lessThan": "79b90a96688e521771fa6ed3dc7864b76b8df293",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
        "lessThan": "83fc5dd63455a779ea2dd0f7ffee3c920919d80b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
        "lessThan": "711987ba281fd806322a7cd244e98e2a81903114",
        "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/netfilter/nfnetlink_osf.c"
    ],
    "versions": [
      {
        "version": "2.6.31",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.31",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.258",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.209",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.175",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.141",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.91",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.33",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.10",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/83fc5dd63455a779ea2dd0f7ffee3c920919d80b
git	www.git.kernel.org/stable/c/95be653a76793856ff8b2d8bd82c2943c23f5ca8
git	www.git.kernel.org/stable/c/79b90a96688e521771fa6ed3dc7864b76b8df293
git	www.git.kernel.org/stable/c/f4de0777e4554a7de19c920accde6319dd530782
git	www.git.kernel.org/stable/c/c996a90f3071cf43683e5423da31aadbe002b8b4
git	www.git.kernel.org/stable/c/5d05de2f0928d81309a815ecc76d1a3ad72cbc16
git	www.git.kernel.org/stable/c/edc806f9122961f0d3819f7c69c14cccde31f277
git	www.git.kernel.org/stable/c/711987ba281fd806322a7cd244e98e2a81903114

24 Jun 2026 17:17Current

5.8Medium risk

Vulners AI Score5.8

EPSS0.00176