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CVE-2025-39946

πŸ—“οΈΒ 04 Oct 2025Β 07:31:07Reported byΒ LinuxTypeΒ 
cve
Β cve
πŸ”—Β web.nvd.nist.govπŸ“°οΈΒ 1Β Media mentionsπŸ‘Β 582Β Views

TLS in the Linux kernel aborts the stream on invalid headers to prevent overflow when parsing invalid records.

Related
Detection
Affected
Refs
Social
NVD
Vulners
CNA
Node
OR
linuxlinux_kernelRange6.0–6.1.154
linuxlinux_kernelRange6.2–6.6.108
linuxlinux_kernelRange6.7–6.12.49
linuxlinux_kernelRange6.13–6.16.9
linuxlinux_kernelMatch6.17rc1
linuxlinux_kernelMatch6.17rc2
linuxlinux_kernelMatch6.17rc3
linuxlinux_kernelMatch6.17rc4
linuxlinux_kernelMatch6.17rc5
linuxlinux_kernelMatch6.17rc6
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/tls/tls.h",
      "net/tls/tls_strp.c",
      "net/tls/tls_sw.c"
    ],
    "versions": [
      {
        "version": "84c61fe1a75b4255df1e1e7c054c9e6d048da417",
        "lessThan": "b36462146d86b1f22e594fe4dae611dffacfb203",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "84c61fe1a75b4255df1e1e7c054c9e6d048da417",
        "lessThan": "4cefe5be73886f383639fe0850bb72d5b568a7b9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "84c61fe1a75b4255df1e1e7c054c9e6d048da417",
        "lessThan": "208640e6225cc929a05adbf79d1df558add3e231",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "84c61fe1a75b4255df1e1e7c054c9e6d048da417",
        "lessThan": "61ca2da5fb8f433ce8bbd1657c84a86272133e6b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "84c61fe1a75b4255df1e1e7c054c9e6d048da417",
        "lessThan": "0aeb54ac4cd5cf8f60131b4d9ec0b6dc9c27b20d",
        "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/tls/tls.h",
      "net/tls/tls_strp.c",
      "net/tls/tls_sw.c"
    ],
    "versions": [
      {
        "version": "6.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.0",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.154",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.108",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.49",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.16.9",
        "lessThanOrEqual": "6.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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19 Oct 2026 21:10Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.15.5 - 9.8
EPSS0.09567
SSVC
582