{"api_version":"1","generated_at":"2026-08-28T09:31:26+00:00","cve":"CVE-2026-80635","urls":{"html":"https://cve.report/CVE-2026-80635","api":"https://cve.report/api/cve/CVE-2026-80635.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80635","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80635"},"summary":{"title":"wifi: wcn36xx: fix OOB read from short trigger BA firmware response","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-28 08:16:48","updated_at":"2026-08-28 08:16:48"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35","name":"https://git.kernel.org/stable/c/d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee","name":"https://git.kernel.org/stable/c/af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b5e6f21923ca89d90256e7346301056f6502691e","name":"https://git.kernel.org/stable/c/b5e6f21923ca89d90256e7346301056f6502691e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2","name":"https://git.kernel.org/stable/c/d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/04aba50212f9f274e1a726fb3873b5ce8da2d821","name":"https://git.kernel.org/stable/c/04aba50212f9f274e1a726fb3873b5ce8da2d821","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c07aa0534d50361183833e3803204044cf1d0476","name":"https://git.kernel.org/stable/c/c07aa0534d50361183833e3803204044cf1d0476","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80635","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80635","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 16be1ac55944412e8d132b1db26f994b368c5742 04aba50212f9f274e1a726fb3873b5ce8da2d821 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 16be1ac55944412e8d132b1db26f994b368c5742 c07aa0534d50361183833e3803204044cf1d0476 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 16be1ac55944412e8d132b1db26f994b368c5742 d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 16be1ac55944412e8d132b1db26f994b368c5742 af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 16be1ac55944412e8d132b1db26f994b368c5742 d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 16be1ac55944412e8d132b1db26f994b368c5742 b5e6f21923ca89d90256e7346301056f6502691e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.7","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.7 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.97 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* 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original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/wireless/ath/wcn36xx/smd.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"04aba50212f9f274e1a726fb3873b5ce8da2d821","status":"affected","version":"16be1ac55944412e8d132b1db26f994b368c5742","versionType":"git"},{"lessThan":"c07aa0534d50361183833e3803204044cf1d0476","status":"affected","version":"16be1ac55944412e8d132b1db26f994b368c5742","versionType":"git"},{"lessThan":"d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35","status":"affected","version":"16be1ac55944412e8d132b1db26f994b368c5742","versionType":"git"},{"lessThan":"af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee","status":"affected","version":"16be1ac55944412e8d132b1db26f994b368c5742","versionType":"git"},{"lessThan":"d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2","status":"affected","version":"16be1ac55944412e8d132b1db26f994b368c5742","versionType":"git"},{"lessThan":"b5e6f21923ca89d90256e7346301056f6502691e","status":"affected","version":"16be1ac55944412e8d132b1db26f994b368c5742","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/ath/wcn36xx/smd.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.7"},{"lessThan":"4.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.97","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.97","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"4.7","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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."}],"providerMetadata":{"dateUpdated":"2026-08-28T06:48:49.637Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/04aba50212f9f274e1a726fb3873b5ce8da2d821"},{"url":"https://git.kernel.org/stable/c/c07aa0534d50361183833e3803204044cf1d0476"},{"url":"https://git.kernel.org/stable/c/d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35"},{"url":"https://git.kernel.org/stable/c/af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee"},{"url":"https://git.kernel.org/stable/c/d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2"},{"url":"https://git.kernel.org/stable/c/b5e6f21923ca89d90256e7346301056f6502691e"}],"title":"wifi: wcn36xx: fix OOB read from short trigger BA firmware response","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-80635","datePublished":"2026-08-28T06:48:49.637Z","dateReserved":"2026-08-26T14:34:25.777Z","dateUpdated":"2026-08-28T06:48:49.637Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-28 08:16:48","lastModifiedDate":"2026-08-28 08:16:48","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80635","Ordinal":"1","Title":"wifi: wcn36xx: fix OOB read from short trigger BA firmware respo","CVE":"CVE-2026-80635","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80635","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"wifi: wcn36xx: fix OOB read from short trigger BA firmware respo"}]}}}