{"id":"CVE-2026-93790","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif\n\nmvmsta->tid_data was indexed by the TFD loop counter 'i' instead of\nthe actual TID value 'tid'","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif\n\nmvmsta->tid_data was indexed by the TFD loop counter 'i' instead of\nthe actual TID value 'tid'. This …","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 >= 41fd2fec56db2564f02532ed7244e1f69193b4ad < 35f991d685feafd27255bd33272512c434e52527","Linux >= 41fd2fec56db2564f02532ed7244e1f69193b4ad < c48b741277b01b2c3b4ecccedc72fc575b71dc04","Linux >= 41fd2fec56db2564f02532ed7244e1f69193b4ad < e8ac5e91b1296f65c3d119fac3fa917ff458f811","Linux >= 41fd2fec56db2564f02532ed7244e1f69193b4ad < 94d3982806c7f194b23484befde12934dda23064","Linux 4.15"],"published":"2026-09-24","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:17:48.677","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93790","references":[{"url":"https://git.kernel.org/stable/c/35f991d685feafd27255bd33272512c434e52527","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/94d3982806c7f194b23484befde12934dda23064","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c48b741277b01b2c3b4ecccedc72fc575b71dc04","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e8ac5e91b1296f65c3d119fac3fa917ff458f811","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93790.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-93790"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2540438"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93790"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93790"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93790.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.00241,"epssPercentile":0.15218,"ingestedAt":"2026-09-24T16:47:15.902Z","cwe":["CWE-787"],"scores":{"nvd":8.8,"vendor":5.5},"slug":"CVE-2026-93790","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif\n\nmvmsta->tid_data was indexed by the TFD loop counter 'i' instead of\nthe actual TID value 'tid'. This writes lq_color into a random tid_data\nslot unrelated to the BA entry.\nSince multi-TID blockack is not really in use, 'i' was always 0 and no\nharm was done.\nAdd a out-of-bound check before accessing the array.\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 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93790.json)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":210545,"id":"CVE-2026-93790","ts":1790316054690,"field":"cvss","old":null,"new":"8.8"},{"seq":210544,"id":"CVE-2026-93790","ts":1790316054690,"field":"severity","old":"none","new":"high"}]}