{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "16be1ac55944412e8d132b1db26f994b368c5742"
            },
            {
              "fixed": "04aba50212f9f274e1a726fb3873b5ce8da2d821"
            },
            {
              "fixed": "c07aa0534d50361183833e3803204044cf1d0476"
            },
            {
              "fixed": "d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35"
            },
            {
              "fixed": "af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee"
            },
            {
              "fixed": "d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2"
            },
            {
              "fixed": "b5e6f21923ca89d90256e7346301056f6502691e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.7.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80635.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wcn36xx: fix OOB read from short trigger BA firmware response\n\nThe firmware response length is only checked against sizeof(*rsp) (20\nbytes), but when candidate_cnt \u003e= 1, a 22-byte candidate struct is read\nat buf + 20 without verifying the response contains it. This causes an\nout-of-bounds read of stale heap data, corrupting the BA session state.\n\nAdd validation that the response includes the candidate data.",
  "id": "CVE-2026-80635",
  "modified": "2026-08-31T03:30:28.249677482Z",
  "published": "2026-08-28T06:48:49.637Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/04aba50212f9f274e1a726fb3873b5ce8da2d821"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5e6f21923ca89d90256e7346301056f6502691e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c07aa0534d50361183833e3803204044cf1d0476"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80635.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80635"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "wifi: wcn36xx: fix OOB read from short trigger BA firmware response"
}