{"id":"CVE-2026-93789","state":"PUBLISHED","title":"wifi: iwlwifi: bound aligned TLV advance in FW parser","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: bound aligned TLV advance in FW parser\n\nValidate ALIGN(tlv_len, 4) against remaining parser length before\nconsuming bytes from the firmware image.\n\nThis avoids length underflow on malformed TLVs.","publishedAt":"2026-09-24T16:02:23.252Z","updatedAt":"2026-10-03T10:57:24.712Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"61da42fdd21d98ccb8f1ec5224659f3d09202cf4","versionType":"git"},{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"8c332d45b736d41301b7e07f322785d821265dbc","versionType":"git"},{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"ce709fcab5e1d4df6d4ba980736dc5908502a40f","versionType":"git"},{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"4cfadb2e01566bc36d42922fbe18838345087050","versionType":"git"},{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"528fa9eb14c209533ca26958b76da55e0ce239d8","versionType":"git"},{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"7aa9097623afb694bc25382a62e14d8e82bf002f","versionType":"git"},{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"acad742714bdc70e7fd7f234323807c596828213","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/intel/iwlwifi/iwl-drv.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.35","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.35","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/intel/iwlwifi/iwl-drv.c"]}],"references":["https://git.kernel.org/stable/c/61da42fdd21d98ccb8f1ec5224659f3d09202cf4","https://git.kernel.org/stable/c/8c332d45b736d41301b7e07f322785d821265dbc","https://git.kernel.org/stable/c/ce709fcab5e1d4df6d4ba980736dc5908502a40f","https://git.kernel.org/stable/c/4cfadb2e01566bc36d42922fbe18838345087050","https://git.kernel.org/stable/c/528fa9eb14c209533ca26958b76da55e0ce239d8","https://git.kernel.org/stable/c/7aa9097623afb694bc25382a62e14d8e82bf002f","https://git.kernel.org/stable/c/acad742714bdc70e7fd7f234323807c596828213"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93789.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93789","state":"PUBLISHED","datePublished":"2026-09-24T16:02:23.252Z","dateUpdated":"2026-10-03T10:57:24.712Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-18T17:59:28.788Z"},"containers":{"cna":{"title":"wifi: iwlwifi: bound aligned TLV advance in FW parser","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: bound aligned TLV advance in FW parser\n\nValidate ALIGN(tlv_len, 4) against remaining parser length before\nconsuming bytes from the firmware image.\n\nThis avoids length underflow on malformed TLVs."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"61da42fdd21d98ccb8f1ec5224659f3d09202cf4","versionType":"git"},{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"8c332d45b736d41301b7e07f322785d821265dbc","versionType":"git"},{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"ce709fcab5e1d4df6d4ba980736dc5908502a40f","versionType":"git"},{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"4cfadb2e01566bc36d42922fbe18838345087050","versionType":"git"},{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"528fa9eb14c209533ca26958b76da55e0ce239d8","versionType":"git"},{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"7aa9097623afb694bc25382a62e14d8e82bf002f","versionType":"git"},{"version":"dd7a2509b3a79b290730a9c6a784bf03fedabb9a","status":"affected","lessThan":"acad742714bdc70e7fd7f234323807c596828213","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/intel/iwlwifi/iwl-drv.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.35","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.35","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/intel/iwlwifi/iwl-drv.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/61da42fdd21d98ccb8f1ec5224659f3d09202cf4"},{"url":"https://git.kernel.org/stable/c/8c332d45b736d41301b7e07f322785d821265dbc"},{"url":"https://git.kernel.org/stable/c/ce709fcab5e1d4df6d4ba980736dc5908502a40f"},{"url":"https://git.kernel.org/stable/c/4cfadb2e01566bc36d42922fbe18838345087050"},{"url":"https://git.kernel.org/stable/c/528fa9eb14c209533ca26958b76da55e0ce239d8"},{"url":"https://git.kernel.org/stable/c/7aa9097623afb694bc25382a62e14d8e82bf002f"},{"url":"https://git.kernel.org/stable/c/acad742714bdc70e7fd7f234323807c596828213"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-03T10:57:24.712Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.35","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.35","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.35","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.35","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.35","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.35","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.35","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}