{"id":"CVE-2026-93515","state":"PUBLISHED","title":".Org Server Present Extension Use-After-Free","description":"A use-after-free in present_clear_window_notifies()  in the X.org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by malicious X clients to crash or potentially execute code in the X server context.","publishedAt":"2026-10-28T12:39:44.890Z","updatedAt":"2026-10-28T12:39:44.890Z","severity":{"score":6.8,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"suse"},"assigner":"suse","products":["X.org xorg-x11-server","x.org xwayland"],"affected":[{"vendor":"X.org","product":"xorg-x11-server","packageName":"xorg-x11-server","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.1.25","versionType":"rpm"}],"repo":"https://gitlab.freedesktop.org/xorg/xserver"},{"vendor":"x.org","product":"xwayland","packageName":"xwayland","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"24.1.14","versionType":"rpm"}],"repo":"https://gitlab.freedesktop.org/xorg/xserver"}],"references":["https://gitlab.freedesktop.org/xorg/xserver/-/commit/1b6955c3108e6b43433aefe860070708e6f43d1b"],"weaknesses":["CWE-416"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93515.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93515","state":"PUBLISHED","datePublished":"2026-10-28T12:39:44.890Z","dateUpdated":"2026-10-28T12:39:44.890Z","assignerShortName":"suse","assignerOrgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb","dateReserved":"2026-09-18T08:46:56.692Z"},"containers":{"cna":{"title":".Org Server Present Extension Use-After-Free","descriptions":[{"lang":"en","value":"A use-after-free in present_clear_window_notifies()  in the X.org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by malicious X clients to crash or potentially execute code in the X server context."}],"affected":[{"vendor":"X.org","product":"xorg-x11-server","packageName":"xorg-x11-server","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.1.25","versionType":"rpm"}],"repo":"https://gitlab.freedesktop.org/xorg/xserver"},{"vendor":"x.org","product":"xwayland","packageName":"xwayland","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"24.1.14","versionType":"rpm"}],"repo":"https://gitlab.freedesktop.org/xorg/xserver"}],"references":[{"url":"https://gitlab.freedesktop.org/xorg/xserver/-/commit/1b6955c3108e6b43433aefe860070708e6f43d1b","tags":["patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.8,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","lang":"en","description":"CWE-416 Use after free","type":"CWE"}]}],"providerMetadata":{"shortName":"suse","orgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb","dateUpdated":"2026-10-28T12:39:44.890Z"},"datePublic":"2026-10-28T12:34:00.000Z","impacts":[{"capecId":"CAPEC-175","descriptions":[{"lang":"en","value":"CAPEC-175 Code Inclusion"}]}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*","versionStartIncluding":"0","versionEndExcluding":"21.1.25"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*","versionStartIncluding":"0","versionEndExcluding":"24.1.14"}]}]}],"credits":[{"lang":"en","value":"Anonymous working with TrendAI Zero Day Initiative","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}}}}}