{"id":"CVE-2026-93806","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: validate assoc response length before status and IE access\n\ncfg80211_rx_assoc_resp() initialises the status and response-IE fields\nof cfg80211_connect_r…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: validate assoc response length before status and IE access\n\ncfg80211_rx_assoc_resp() initialises the status and response-IE fields\nof cfg80211_connect_r…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 6829c878ecd24ff0ae41b4668c7e9d0f11b66942 < 3bcaaaa4ad334053ceea2ea2f0623f22afe2e1ac","Linux >= 6829c878ecd24ff0ae41b4668c7e9d0f11b66942 < 71be658246c903b9e96976a23c23800675896a1b","Linux >= 6829c878ecd24ff0ae41b4668c7e9d0f11b66942 < a57310600c1e2b9ada0f37c96e8f48aef47d3093","Linux >= 6829c878ecd24ff0ae41b4668c7e9d0f11b66942 < 78ac450ad4624d6b2999cb4eeb28916767f81247","Linux >= 6829c878ecd24ff0ae41b4668c7e9d0f11b66942 < b760113aeca2e9362d56bf9e9263373ffe6c8eb3","Linux 2.6.32"],"published":"2026-09-24","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:17:50.320","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93806","references":[{"url":"https://git.kernel.org/stable/c/3bcaaaa4ad334053ceea2ea2f0623f22afe2e1ac","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/71be658246c903b9e96976a23c23800675896a1b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/78ac450ad4624d6b2999cb4eeb28916767f81247","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a57310600c1e2b9ada0f37c96e8f48aef47d3093","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b760113aeca2e9362d56bf9e9263373ffe6c8eb3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93806.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-93806"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2540423"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93806"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93806"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93806.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.00254,"epssPercentile":0.16801,"ingestedAt":"2026-09-24T16:47:15.900Z","cwe":["CWE-125"],"scores":{"nvd":8.8,"vendor":5.5},"slug":"CVE-2026-93806","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: validate assoc response length before status and IE access\n\ncfg80211_rx_assoc_resp() initialises the status and response-IE fields\nof cfg80211_connect_resp_params from the management frame before\nproving that the frame is long enough for those offsets. S1G and\nregular association responses also have different IE offsets, but the\nS1G path only patched resp_ie after the unsafe initialiser had already\nrun.\n\nDefer resp_ie, resp_ie_len, and status to after the link-iteration\nloop. Use a bool to remember whether the frame is S1G, then validate\nthe appropriate minimum length and set all three fields in a single\nif/else block. Funnel short-frame and SME-reject cleanup through a\nshared free_bss label for the abandon paths.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93806.json)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":210557,"id":"CVE-2026-93806","ts":1790316054758,"field":"cvss","old":null,"new":"8.8"},{"seq":210556,"id":"CVE-2026-93806","ts":1790316054758,"field":"severity","old":"none","new":"high"}]}