{"id":"CVE-2026-89523","title":"kernel: wifi: mt76: mt7925: cancel pending mlo_pm_work (CVE-2026-89523)","summary":"A flaw was found in the Linux kernel's MediaTek mt7925 Wi-Fi driver. When the device is reset, suspended, or unregistered, a pending work item (`mlo_pm_work`) can continue to execute. This can lead to the work item accessing memory that ha…","severity":"high","cvss":7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"vendor","cwe":"CWE-367","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-09-11","updated":"2026-09-16","sourceUpdated":"2026-09-16T09:12:04+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89523.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89523.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89523"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532372"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89523"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89523"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89523.mbox"},{"url":"https://git.kernel.org/stable/c/2889e84282dda147f10b10d94cf0efd90a349c53"},{"url":"https://git.kernel.org/stable/c/5be6d02837d418bc6c805b5cab1b338de6de9ca7"},{"url":"https://git.kernel.org/stable/c/c5e073f2fbfd34d22099a50d96f60990799753e2"}],"tags":["csaf","vex","red-hat","cve.org","score-dispute"],"epss":0.00136,"epssPercentile":0.03423,"scores":{"vendor":4.2,"cna":7.8},"ingestedAt":"2026-09-14T15:23:07.475Z","slug":"CVE-2026-89523","body":"## Overview\n\nA flaw was found in the Linux kernel's MediaTek mt7925 Wi-Fi driver. When the device is reset, suspended, or unregistered, a pending work item (`mlo_pm_work`) can continue to execute. This can lead to the work item accessing memory that has already been freed (a use-after-free vulnerability) or sending commands to unavailable firmware. The most significant consequence is a denial of service, which can cause system instability or crashes.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-09-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89523.json)\n\n**kernel: wifi: mt76: mt7925: cancel pending mlo_pm_work** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-16.\n\nAffected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\nNo fix planned:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\nNot affected:\n\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n- Red Hat OpenShift Container Platform 4\n\n## Remediation\n\nAffected","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":205475,"id":"CVE-2026-89523","ts":1789576721535,"field":"cvss","old":"4.2","new":"7"},{"seq":205474,"id":"CVE-2026-89523","ts":1789576721535,"field":"severity","old":"medium","new":"high"},{"seq":202897,"id":"CVE-2026-89523","ts":1789403732854,"field":"cvss","old":"7.8","new":"4.2"},{"seq":202896,"id":"CVE-2026-89523","ts":1789403732854,"field":"severity","old":"high","new":"medium"},{"seq":197977,"id":"CVE-2026-89523","ts":1789384321225,"field":"cvss","old":"4.2","new":"7.8"},{"seq":197976,"id":"CVE-2026-89523","ts":1789384321225,"field":"severity","old":"medium","new":"high"},{"seq":183498,"id":"CVE-2026-89523","ts":1789356675616,"field":"cvss","old":"7.8","new":"4.2"},{"seq":183497,"id":"CVE-2026-89523","ts":1789356675616,"field":"severity","old":"high","new":"medium"},{"seq":153314,"id":"CVE-2026-89523","ts":1789285350006,"field":"cvss","old":null,"new":"7.8"},{"seq":153313,"id":"CVE-2026-89523","ts":1789285350006,"field":"severity","old":"none","new":"high"},{"seq":147311,"id":"CVE-2026-89523","ts":1789270208904,"field":"cvss","old":null,"new":"4.2"},{"seq":147310,"id":"CVE-2026-89523","ts":1789270208904,"field":"severity","old":"none","new":"medium"},{"seq":109066,"id":"CVE-2026-89523","ts":1789183730175,"field":"cvss","old":null,"new":"4.2"},{"seq":109065,"id":"CVE-2026-89523","ts":1789183730175,"field":"severity","old":"none","new":"medium"}]}