{"id":"CVE-2026-89773","title":"kernel: drm/amd/display: Skip Update HDCP Config In Transition State (CVE-2026-89773)","summary":"A flaw was found in the `drm/amd/display` component of the Linux kernel. This vulnerability occurs because the High-bandwidth Digital Content Protection (HDCP) configuration routine is skipped during a transition state when an invalid `dm_…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":"CWE-908","vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","affected":["enterprise_linux 6"],"published":"2026-09-11","updated":"2026-09-16","sourceUpdated":"2026-09-16T04:24:07+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89773.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89773.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89773"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532336"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89773"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89773"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89773.mbox"},{"url":"https://git.kernel.org/stable/c/d5164580a99477dcfe15cea101b153b1e63f1535"},{"url":"https://git.kernel.org/stable/c/f733276ae737e4d599d1e19de6722aee1521a154"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00176,"epssPercentile":0.07401,"ingestedAt":"2026-09-14T15:23:07.476Z","slug":"CVE-2026-89773","body":"## Overview\n\nA flaw was found in the `drm/amd/display` component of the Linux kernel. This vulnerability occurs because the High-bandwidth Digital Content Protection (HDCP) configuration routine is skipped during a transition state when an invalid `dm_stream_ctx` is present. This can lead to the HDCP routine not being properly configured, potentially allowing unauthorized access to protected content.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 6 · no fix planned: Red Hat Enterprise Linux 6 · updated 2026-09-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89773.json)\n\n**kernel: drm/amd/display: Skip Update HDCP Config In Transition State** — rated Low by Red Hat. Released 2026-09-11, updated 2026-09-16.\n\nAffected:\n\n- Red Hat Enterprise Linux 6\n\nNo fix planned:\n\n- Red Hat Enterprise Linux 6\n\nNot affected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\n## Remediation\n\nOut of support scope","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":203982,"id":"CVE-2026-89773","ts":1789490230911,"field":"cvss","old":null,"new":"5.5"},{"seq":203981,"id":"CVE-2026-89773","ts":1789490230911,"field":"severity","old":"none","new":"medium"},{"seq":147353,"id":"CVE-2026-89773","ts":1789270210573,"field":"cvss","old":null,"new":"5.5"},{"seq":147352,"id":"CVE-2026-89773","ts":1789270210573,"field":"severity","old":"none","new":"medium"},{"seq":109102,"id":"CVE-2026-89773","ts":1789183730312,"field":"cvss","old":null,"new":"5.5"},{"seq":109101,"id":"CVE-2026-89773","ts":1789183730312,"field":"severity","old":"none","new":"medium"}]}