{"schema":"threatline.record/2","record":{"id":"CVE-2026-93803","aliases":[],"summary":"wifi: libipw: fix key index receive bound checks","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libipw: fix key index receive bound checks\n\nlibipw_rx() reads skb->data[hdrlen + 3] to extract the WEP key index in\nboth the software-decrypt key selection path and the hardware-decrypted\nIV/ICV strip path. In both places the existing guard only checks\nskb->len >= hdrlen + 3, which proves bytes up to hdrlen + 2 but not the\nbyte at hdrlen + 3.\n\nRequire hdrlen + 4 bytes before reading that item in both paths. This is\na local source-boundary check only; it does not change the key index\nsemantics.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93803","source_modified_at":"2026-10-03T10:57:36.957Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"b453872c35cfcbdbf5a794737817f7d4e7b1b579","lessThan":"bb18262c19feb690ddde58c70e3ad04bc6fe566e","status":"affected","versionType":"git"},{"version":"b453872c35cfcbdbf5a794737817f7d4e7b1b579","lessThan":"09d4a1bc3a08bb0e19bdf250b9f575cfef0bae82","status":"affected","versionType":"git"},{"version":"b453872c35cfcbdbf5a794737817f7d4e7b1b579","lessThan":"2836a870f612a8a6d9e390d00fa2cf6c90aa5808","status":"affected","versionType":"git"},{"version":"b453872c35cfcbdbf5a794737817f7d4e7b1b579","lessThan":"0b61c465ea62063593bc9ac186871b69e58ae991","status":"affected","versionType":"git"},{"version":"b453872c35cfcbdbf5a794737817f7d4e7b1b579","lessThan":"062840bdc9ee06169b3c371bf66711f1d7ec0bf4","status":"affected","versionType":"git"},{"version":"b453872c35cfcbdbf5a794737817f7d4e7b1b579","lessThan":"c54b643e9a0936d038921c547736574fd7382cea","status":"affected","versionType":"git"},{"version":"b453872c35cfcbdbf5a794737817f7d4e7b1b579","lessThan":"74ed3669f26803b1761c1f55403062bea44c3466","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93803","source_modified_at":"2026-10-03T10:57:36.957Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"2.6.14","status":"affected"},{"version":"0","lessThan":"2.6.14","status":"unaffected","versionType":"semver"},{"version":"5.10.271","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.111","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.53","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93803","source_modified_at":"2026-10-03T10:57:36.957Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"09d4a1bc3a08bb0e19bdf250b9f575cfef0bae82","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93803","source_modified_at":"2026-10-03T10:57:36.957Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"2836a870f612a8a6d9e390d00fa2cf6c90aa5808","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93803","source_modified_at":"2026-10-03T10:57:36.957Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"0b61c465ea62063593bc9ac186871b69e58ae991","basis":"first unaffected version stated in the CVE record"},{"source":"CVE 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List","url":"https://www.cve.org/CVERecord?id=CVE-2026-93803","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-03T10:57:36.957Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-93803","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/bb18262c19feb690ddde58c70e3ad04bc6fe566e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/09d4a1bc3a08bb0e19bdf250b9f575cfef0bae82"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/2836a870f612a8a6d9e390d00fa2cf6c90aa5808"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/0b61c465ea62063593bc9ac186871b69e58ae991"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/062840bdc9ee06169b3c371bf66711f1d7ec0bf4"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c54b643e9a0936d038921c547736574fd7382cea"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/74ed3669f26803b1761c1f55403062bea44c3466"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-03T10:57:36.957Z","content_hash":"7e794886e281277547312b5b49026ef048e830dc2c7eec4d80fc3312783c5a14"}}