{"id":"CVE-2026-80635","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-80635","summary":"wifi: wcn36xx: fix OOB read from short trigger BA firmware response","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 >= 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.","published":"2026-08-28T06:48:49.637Z","modified":"2026-08-30T03:48:20.925646930Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.1.178"}],"fix":null,"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-30T03:48:20.925646930Z"}}