CVE-2026-53267

🗓️ 25 Jun 2026 08:39:53Reported by LinuxType

Fixes netfilter nft_ct evaluation by rejecting template connection tracking to prevent overflow.

Reporter	Title	Published	Views	Family All 3
Cvelist	CVE-2026-53267 netfilter: nft_ct: bail out on template ct in get eval	25 Jun 202608:39	–	cvelist
EUVD	EUVD-2026-39218	25 Jun 202609:31	–	euvd
NVD	CVE-2026-53267	25 Jun 202609:16	–	nvd

Vulners

CNA

Node

linux linux_kernelRange4.1–6.6.143

linux linux_kernelRange6.7.0–6.12.94

linux linux_kernelRange6.13.0–6.18.36

linux linux_kernelRange6.19.0–7.0.13

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/nft_ct.c",
      "net/netfilter/nft_ct_fast.c"
    ],
    "versions": [
      {
        "version": "45d9bcda21f4c13be75e3571b0f0ef39e77934b5",
        "lessThan": "af80f78ce984649e1698b841cd33f4fa505ad828",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "45d9bcda21f4c13be75e3571b0f0ef39e77934b5",
        "lessThan": "8470f676eadeab99132708acb1a85915664d6115",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "45d9bcda21f4c13be75e3571b0f0ef39e77934b5",
        "lessThan": "f071b0bf078146368d18e4eec386bf2ddc0ab7e0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "45d9bcda21f4c13be75e3571b0f0ef39e77934b5",
        "lessThan": "2e154b5f53f1b0b490c7b8b02499f90feb86b1d5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "45d9bcda21f4c13be75e3571b0f0ef39e77934b5",
        "lessThan": "3027ecbdb5fdf9200251c21d4818e4c447ef78e1",
        "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/nft_ct.c",
      "net/netfilter/nft_ct_fast.c"
    ],
    "versions": [
      {
        "version": "4.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.1",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.94",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.36",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.13",
        "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/af80f78ce984649e1698b841cd33f4fa505ad828
git	www.git.kernel.org/stable/c/f071b0bf078146368d18e4eec386bf2ddc0ab7e0
git	www.git.kernel.org/stable/c/2e154b5f53f1b0b490c7b8b02499f90feb86b1d5
git	www.git.kernel.org/stable/c/3027ecbdb5fdf9200251c21d4818e4c447ef78e1
git	www.git.kernel.org/stable/c/8470f676eadeab99132708acb1a85915664d6115

25 Jun 2026 09:16Current

5.8Medium risk

Vulners AI Score5.8