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CVE-2026-74478

🗓️ 15 Aug 2026 12:27:12Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 60 Views

Linux kernel vector_mmsg_rx() use-after-free frees skb twice on GRE/L2TPv3 header check failure.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-74478
17 Aug 202616:20
circl
cvelist
Cvelist
CVE-2026-74478 um: vector: fix use-after-free in vector_mmsg_rx()
15 Aug 202612:27
cvelist
debian
Debian
[SECURITY] [DSA 6466-1] linux security update
25 Aug 202620:09
debian
debiancve
Debian CVE
CVE-2026-74478
15 Aug 202612:27
debiancve
nessus
Tenable Nessus
Debian dsa-6466 : ata-modules-6.12.101+deb13-armmp-di - security update
25 Aug 202600:00
nessus
nessus
Tenable Nessus
Photon OS 5.0: Linux PHSA-2026-5.0-92-0952
12 Aug 202600:00
nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-74478
15 Aug 202600:00
nessus
euvd
EUVD
EUVD-2026-59671
15 Aug 202612:27
euvd
nvd
NVD
CVE-2026-74478
15 Aug 202613:17
nvd
osv
OSV
BELL-CVE-2026-74478
18 Aug 202606:06
osv
Rows per page
Vulners
CNA
Node
OR
linuxlinux_kernelRange4.175.10.265
linuxlinux_kernelRange5.11.05.15.216
linuxlinux_kernelRange5.16.06.1.183
linuxlinux_kernelRange6.2.06.6.151
linuxlinux_kernelRange6.7.06.12.103
linuxlinux_kernelRange6.13.06.18.44
linuxlinux_kernelRange6.19.07.1.8
linuxlinux_kernelRange7.2.0
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/um/drivers/vector_kern.c"
    ],
    "versions": [
      {
        "version": "49da7e64f33e80edffb1a9eeb230fa4c3f42dffb",
        "lessThan": "967c779c9853d2a1cc9cd8e61d300250c348f3d9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "49da7e64f33e80edffb1a9eeb230fa4c3f42dffb",
        "lessThan": "a7bc015bb798c525e7a82dd14225c6aeb994274b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "49da7e64f33e80edffb1a9eeb230fa4c3f42dffb",
        "lessThan": "7dc9781e320d664c9bdd50003c9acfddf363d1e1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "49da7e64f33e80edffb1a9eeb230fa4c3f42dffb",
        "lessThan": "4b9601595e8b6b5d18878cac0aeabc687d241111",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "49da7e64f33e80edffb1a9eeb230fa4c3f42dffb",
        "lessThan": "67d58ab4f2ccf7145f3da07e025735a09c79de1b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "49da7e64f33e80edffb1a9eeb230fa4c3f42dffb",
        "lessThan": "180ff4c81faf01ec4e06082c9daa7c40518ead89",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "49da7e64f33e80edffb1a9eeb230fa4c3f42dffb",
        "lessThan": "804b681002ead233abf49a3efd681f5468a835f9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "49da7e64f33e80edffb1a9eeb230fa4c3f42dffb",
        "lessThan": "af421e9aed3920c7ac88c24daa48606c7112feca",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/um/drivers/vector_kern.c"
    ],
    "versions": [
      {
        "version": "4.17",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.17",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.265",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.216",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.183",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.151",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.103",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.44",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.8",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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19 Aug 2026 17:21Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.19.8
EPSS0.00573
60