CVE-2026-80800

🗓️ 04 Sep 2026 15:13:14Reported by LinuxType

Unbounded TLV walk in Linux kernel nfc_llcp_connect_sn enables OOB read from nearby NFC device.

Reporter	Title	Published	Views	Family All 6
Cvelist	CVE-2026-80800 nfc: llcp: bound the connect_sn TLV walk to the skb	4 Sep 202615:13	–	cvelist
Debian CVE	CVE-2026-80800	4 Sep 202615:13	–	debiancve
EUVD	EUVD-2026-71235	4 Sep 202615:13	–	euvd
NVD	CVE-2026-80800	4 Sep 202616:18	–	nvd
OSV	DEBIAN-CVE-2026-80800	4 Sep 202616:18	–	osv
Positive Technologies	PT-2026-85641	4 Sep 202600:00	–	ptsecurity

Vulners

CNA

Node

linux linux_kernelRange3.3–5.10.267

linux linux_kernelRange5.11.0–5.15.218

linux linux_kernelRange5.16.0–6.1.185

linux linux_kernelRange6.2.0–6.6.154

linux linux_kernelRange6.7.0–6.12.106

linux linux_kernelRange6.13.0–6.18.47

linux linux_kernelRange6.19.0–7.1.11

linux linux_kernelRange7.2.0–7.2.1

linux linux_kernelRange7.3.0–7.3-rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/nfc/llcp_core.c"
    ],
    "versions": [
      {
        "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
        "lessThan": "b2ebdfe3d5b76e91f267a61cbc3f9a0e3f77071e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
        "lessThan": "e18d044bab6d3d0280639098c3fe6621692cbfe2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
        "lessThan": "65a0ec7783b06068dda6745dd689bf4a91ee64aa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
        "lessThan": "1964addc8dd535a05d5d3b55b4d1ac19ae31aa65",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
        "lessThan": "389986fd79e4d43f971a03b512645a1bb63c982f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
        "lessThan": "e87527b506c40db9af528714b7b1240918eb80fc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
        "lessThan": "22e5177ba1196a0b272a6a46c2575eb940a939c4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
        "lessThan": "0cfbdb0e13ab5b0765d77f96af67eb879cbc9736",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
        "lessThan": "55c68ac93e7dacc0f5f608b9c39dd4ff48cf28e8",
        "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/nfc/llcp_core.c"
    ],
    "versions": [
      {
        "version": "3.3",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.3",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.267",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.218",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.185",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.154",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.106",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.47",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.11",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.1",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/389986fd79e4d43f971a03b512645a1bb63c982f
git	www.git.kernel.org/stable/c/e87527b506c40db9af528714b7b1240918eb80fc
git	www.git.kernel.org/stable/c/b2ebdfe3d5b76e91f267a61cbc3f9a0e3f77071e
git	www.git.kernel.org/stable/c/65a0ec7783b06068dda6745dd689bf4a91ee64aa
git	www.git.kernel.org/stable/c/1964addc8dd535a05d5d3b55b4d1ac19ae31aa65
git	www.git.kernel.org/stable/c/22e5177ba1196a0b272a6a46c2575eb940a939c4
git	www.git.kernel.org/stable/c/e18d044bab6d3d0280639098c3fe6621692cbfe2
git	www.git.kernel.org/stable/c/0cfbdb0e13ab5b0765d77f96af67eb879cbc9736
git	www.git.kernel.org/stable/c/55c68ac93e7dacc0f5f608b9c39dd4ff48cf28e8

04 Sep 2026 16:18Current