CVE-2026-53221

🗓️ 25 Jun 2026 08:39:23Reported by LinuxType

Fixed incorrect tunnel matching in vti6_tnl_lookup due to missing wildcard checks in fallback searches.

Reporter	Title	Published	Views	Family All 5
ATTACKERKB	CVE-2026-53221	25 Jun 202608:39	–	attackerkb
Cvelist	CVE-2026-53221 ip6_vti: fix incorrect tunnel matching in vti6_tnl_lookup()	25 Jun 202608:39	–	cvelist
Debian CVE	CVE-2026-53221	25 Jun 202608:39	–	debiancve
EUVD	EUVD-2026-39312	25 Jun 202609:31	–	euvd
NVD	CVE-2026-53221	25 Jun 202609:16	–	nvd

Vulners

CNA

Node

linux linux_kernelRange3.19–5.10.259

linux linux_kernelRange5.11.0–5.15.210

linux linux_kernelRange5.16.0–6.1.176

linux linux_kernelRange6.2.0–6.6.143

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/ipv6/ip6_vti.c"
    ],
    "versions": [
      {
        "version": "fbe68ee87522f6eaa10f9076c0a7117e1613f2f7",
        "lessThan": "c327fa4fca31415431202e063767a7ae342e19c6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fbe68ee87522f6eaa10f9076c0a7117e1613f2f7",
        "lessThan": "fc657ac0767c49839b3ef0b08dc0953ca30883f8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fbe68ee87522f6eaa10f9076c0a7117e1613f2f7",
        "lessThan": "47fb3c2b4203556308e64354b3e78f2ce221d646",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fbe68ee87522f6eaa10f9076c0a7117e1613f2f7",
        "lessThan": "f513f308cc4bdb4530d033431592ffbc29b7fca1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fbe68ee87522f6eaa10f9076c0a7117e1613f2f7",
        "lessThan": "90fd4513315ca07da99cfd8549d3e553a7160f0d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fbe68ee87522f6eaa10f9076c0a7117e1613f2f7",
        "lessThan": "2abfb19bbb81958714ad1d43ebeb65b30394184b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fbe68ee87522f6eaa10f9076c0a7117e1613f2f7",
        "lessThan": "2fc7bc087cc7085368263d9d37bfe9a0bddd6a2d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fbe68ee87522f6eaa10f9076c0a7117e1613f2f7",
        "lessThan": "a5c0359f5cbc51a2e2b114d6041e0f3c73f903e9",
        "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/ipv6/ip6_vti.c"
    ],
    "versions": [
      {
        "version": "3.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.259",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.210",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "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/2abfb19bbb81958714ad1d43ebeb65b30394184b
git	www.git.kernel.org/stable/c/90fd4513315ca07da99cfd8549d3e553a7160f0d
git	www.git.kernel.org/stable/c/a5c0359f5cbc51a2e2b114d6041e0f3c73f903e9
git	www.git.kernel.org/stable/c/47fb3c2b4203556308e64354b3e78f2ce221d646
git	www.git.kernel.org/stable/c/c327fa4fca31415431202e063767a7ae342e19c6
git	www.git.kernel.org/stable/c/2fc7bc087cc7085368263d9d37bfe9a0bddd6a2d
git	www.git.kernel.org/stable/c/f513f308cc4bdb4530d033431592ffbc29b7fca1
git	www.git.kernel.org/stable/c/fc657ac0767c49839b3ef0b08dc0953ca30883f8

25 Jun 2026 09:16Current

5.9Medium risk

Vulners AI Score5.9