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CVE-2023-53821

🗓️ 09 Dec 2025 01:29:34Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 5 Views

CVE-2023-53821 fixes slab use-after-free in decode_session6 when ipv6_vti uses sfb queuing.

Related
Detection
Affected
Refs
Vulners
CNA
Node
linuxlinux_kernelRange3.194.14.324
OR
linuxlinux_kernelRange4.15.04.19.293
OR
linuxlinux_kernelRange4.20.05.4.255
OR
linuxlinux_kernelRange5.5.05.10.192
OR
linuxlinux_kernelRange5.11.05.15.128
OR
linuxlinux_kernelRange5.16.06.1.47
OR
linuxlinux_kernelRange6.2.06.4.12
OR
linuxlinux_kernelRange6.5.0
[
  {
    "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": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "0f0ab8d52ee0062b28367dea23c29e254a26d7db",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "fa6c6c04f6c9b21b315023f487e5a07ae7fcf647",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "eb47e612e59c358c3968a92f90dd36c78c9a2106",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "ec23b25e5687dbd644c0f57bcb6af22dd5a6dd36",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "a1639a82ce14af76b6419778d343ccbff86ee626",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "55ad2309205cc00c585344374c7472420e1b2c12",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "c070688bfbe7759e61e697e421b2a331b0dd74bc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "9fd41f1ba638938c9a1195d09bc6fa3be2712f25",
        "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": "4.14.324",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.293",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.255",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.192",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.128",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.47",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.4.12",
        "lessThanOrEqual": "6.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.5",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 19:52Current
5.8Medium risk
Vulners AI Score5.8
EPSS0.0004
5