{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93524","assignerOrgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb","state":"PUBLISHED","assignerShortName":"suse","dateReserved":"2026-09-18T08:46:56.692Z","datePublished":"2026-10-28T16:24:52.508Z","dateUpdated":"2026-10-28T16:24:52.508Z"},"containers":{"cna":{"providerMetadata":{"orgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb","shortName":"suse","dateUpdated":"2026-10-28T16:24:52.508Z"},"title":"X.Org Server XKB SetMap Key Width/Action Count Desync Out-Of-Bounds Read","datePublic":"2026-10-28T16:20:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-126","description":"CWE-126 Buffer over-read","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-131","descriptions":[{"lang":"en","value":"CAPEC-131 Resource Leak Exposure"}]}],"affected":[{"vendor":"x.org","product":"xorg-x11-server","packageName":"xorg-x11-server","repo":"https://gitlab.freedesktop.org/xorg/xserver","versions":[{"status":"affected","version":"0","lessThan":"21.1.25","versionType":"rpm"}],"defaultStatus":"unaffected"},{"vendor":"x.org","product":"xwayland","packageName":"xwayland","repo":"https://gitlab.freedesktop.org/xorg/xserver","versions":[{"status":"affected","version":"0","lessThan":"24.1.14","versionType":"rpm"}],"defaultStatus":"unaffected"}],"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"}]}]}],"descriptions":[{"lang":"en","value":"A buffer overread in CheckKeySyms() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to leak small amounts of information from X server memory or potentially crash the X server.","supportingMedia":[{"type":"text/html","base64":false,"value":"A buffer overread in&nbsp;<span>CheckKeySyms() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to leak small amounts of information from X server memory or potentially crash the X server.</span>"}]}],"references":[{"url":"https://gitlab.freedesktop.org/xorg/xserver/-/commit/cea71d0273e4d5092aa9c6a8a770734c8935c02e","tags":["patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","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":6.9,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N"}}],"credits":[{"lang":"en","value":"WONJOON HWANG (@joon1337) working with TrendAI Zero Day Initiative","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}}}}