CVE-2026-74579

🗓️ 17 Aug 2026 05:28:27Reported by LinuxType

UBSAN shift overflow in nft_payload mask build causes undefined behavior for partial IPv6 field offload.

Reporter	Title	Published	Views	Family All 26
ATTACKERKB	CVE-2026-74579	17 Aug 202605:28	–	attackerkb
Tenable Nessus	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-2106)	31 Aug 202600:00	–	nessus
Tenable Nessus	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-2110)	31 Aug 202600:00	–	nessus
Tenable Nessus	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2026-130 (ALASKERNEL-5.10-2026-130)	31 Aug 202600:00	–	nessus
Tenable Nessus	Debian dsa-6466 : ata-modules-6.12.101+deb13-armmp-di - security update	25 Aug 202600:00	–	nessus
Tenable Nessus	Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-500248)	4 Sep 202600:00	–	nessus
Tenable Nessus	Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2026-500249)	4 Sep 202600:00	–	nessus
Tenable Nessus	Photon OS 5.0: Linux PHSA-2026-5.0-92-0952	12 Aug 202600:00	–	nessus
Tenable Nessus	Linux Distros Unpatched Vulnerability : CVE-2026-74579	17 Aug 202600:00	–	nessus
Circl	CVE-2026-74579	17 Aug 202605:51	–	circl

Vulners

CNA

Node

linux linux_kernelRange5.9.14–5.10

linux linux_kernelRange5.10–5.10.265

linux linux_kernelRange5.11.0–5.15.216

linux linux_kernelRange5.16.0–6.1.183

linux linux_kernelRange6.2.0–6.6.151

linux linux_kernelRange6.7.0–6.12.103

linux linux_kernelRange6.13.0–6.18.44

linux linux_kernelRange6.19.0–7.1.8

linux linux_kernelRange7.2.0≥

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/nft_payload.c"
    ],
    "versions": [
      {
        "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
        "lessThan": "3ee7b3f813b11f28cd6efdf7f24d64b5a7fd4dc7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
        "lessThan": "8720df4504e0ed1781a702f65251bd47b3534d5e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
        "lessThan": "363c3a84a946d53e5e121c9f47c7c2b7d228c46b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
        "lessThan": "b19b5d2e042c294e2cc1c908dc598f9d64015396",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
        "lessThan": "a375d8ace807767f29f276b681b6324c74929b1d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
        "lessThan": "16b553c46e347bc9de9946c4960654d5884a86de",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
        "lessThan": "630295d5bba1d0e0f494cc459452eb0a0058c545",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
        "lessThan": "39e88f28fb32bf02bd4b525c24c842c9cff5663d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5c2b4b4f9fa5b765b927e361e3d310bcb5773015",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.9.14",
        "lessThan": "5.10",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/nft_payload.c"
    ],
    "versions": [
      {
        "version": "5.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.10",
        "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"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/a375d8ace807767f29f276b681b6324c74929b1d
git	www.git.kernel.org/stable/c/8720df4504e0ed1781a702f65251bd47b3534d5e
git	www.git.kernel.org/stable/c/b19b5d2e042c294e2cc1c908dc598f9d64015396
git	www.git.kernel.org/stable/c/363c3a84a946d53e5e121c9f47c7c2b7d228c46b
git	www.git.kernel.org/stable/c/39e88f28fb32bf02bd4b525c24c842c9cff5663d
git	www.git.kernel.org/stable/c/630295d5bba1d0e0f494cc459452eb0a0058c545
git	www.git.kernel.org/stable/c/3ee7b3f813b11f28cd6efdf7f24d64b5a7fd4dc7
git	www.git.kernel.org/stable/c/16b553c46e347bc9de9946c4960654d5884a86de

25 Aug 2026 06:18Current

5.5Medium risk

Vulners AI Score5.5

CVSS 3.17.1

EPSS0.0012