{"identifier":"CVE-2026-93521","cve":{"id":"CVE-2026-93521","description":"A buffer overflow in RandR\nChangeProviderProperty requests in X.Org X Server before 2.1.25 and XWayland before 24.4.14 could be used by authenticated X clients to crash or execute code within the X server context.","published":"2026-10-28T16:17:10.060000+00:00","modified":"2026-10-29T15:04:37.187000+00:00","status":"Awaiting Analysis","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_version":"3.1","affected":[],"weaknesses":["CWE-122"],"references":[{"url":"https://gitlab.freedesktop.org/xorg/xserver/-/commit/5dc9efd5a199717b53f70b9c6cd336a522370e46","source":"meissner@suse.de"}],"kev":null,"kev_checked":true,"metrics":{"cvssMetricV31":[{"source":"meissner@suse.de","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[],"source":"nvd","retrieved_at":"2026-10-29T17:33:52.095592+00:00","exploited":false,"kev_stale":false,"products":[],"priority":{"label":"Assess exposure and vendor guidance","reasons":["No higher-priority signal is available in the current stored evidence."]},"epss":{"probability":0.00202,"percentile":0.10151,"date":"2026-10-29","stale":false},"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"gitlab.freedesktop.org","source_url":"https://gitlab.freedesktop.org/xorg/xserver/-/commit/5dc9efd5a199717b53f70b9c6cd336a522370e46","investigate_url":"https://investigate.aeglixmind.com/#gitlab.freedesktop.org"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2026-93521","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2026-93521","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2026-93521","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}