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CVE-2026-43038

🗓️ 01 May 2026 14:15:35Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 273 Views

Fix clears skb2->cb[] in ip6_err_gen_icmpv6_unreach to prevent forged ICMPv4 CIPSO abuse.

Related
Detection
Affected
Refs
Social
NVD
Vulners
CNA
Node
OR
linuxlinux_kernelRange3.135.10.253
linuxlinux_kernelRange5.115.15.203
linuxlinux_kernelRange5.166.1.168
linuxlinux_kernelRange6.26.6.134
linuxlinux_kernelRange6.76.12.81
linuxlinux_kernelRange6.136.18.22
linuxlinux_kernelRange6.196.19.12
linuxlinux_kernelMatch3.13rc3
linuxlinux_kernelMatch3.13rc4
linuxlinux_kernelMatch3.13rc5
linuxlinux_kernelMatch3.13rc6
linuxlinux_kernelMatch3.13rc7
linuxlinux_kernelMatch3.13rc8
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv6/icmp.c"
    ],
    "versions": [
      {
        "version": "ca15a078bd907df5fc1c009477869c5cbde3b753",
        "lessThan": "c438ba010171b70bad22fc18b1d5bdc3627476e8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ca15a078bd907df5fc1c009477869c5cbde3b753",
        "lessThan": "0452b6526b2f54b2413b9cb4ff1ea2ac542c99c7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ca15a078bd907df5fc1c009477869c5cbde3b753",
        "lessThan": "a4437faf135da293d16fcc4cc607316742bd0ebb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ca15a078bd907df5fc1c009477869c5cbde3b753",
        "lessThan": "3d5127d998de617b130aae96b138dba22ac6a8a7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ca15a078bd907df5fc1c009477869c5cbde3b753",
        "lessThan": "e41953e7d118e2702bcb217879c173d9d1d3cd4e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ca15a078bd907df5fc1c009477869c5cbde3b753",
        "lessThan": "a2edbb6393972a02114b6003953a5cef3104fada",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ca15a078bd907df5fc1c009477869c5cbde3b753",
        "lessThan": "1ceeebd5bd6d855b17a5df625109bfe29129d7cf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ca15a078bd907df5fc1c009477869c5cbde3b753",
        "lessThan": "86ab3e55673a7a49a841838776f1ab18d23a67b5",
        "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/icmp.c"
    ],
    "versions": [
      {
        "version": "3.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.13",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.253",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.203",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.168",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.134",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.81",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.22",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.12",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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15 Jul 2026 02:21Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.19.8
EPSS0.00255
273