{"id":"CVE-2026-93524","revision":"39131fa6b4674a0390065a1c5bc5d131","records":[{"revision":"39131fa6b4674a0390065a1c5bc5d131","observedAt":"2026-10-28T17:46:48.824+00:00","statement":{"source":"cve-program","id":"CVE-2026-93524","aliases":[],"title":"X.Org Server XKB SetMap Key Width/Action Count Desync Out-Of-Bounds Read","description":"A buffer overread in\u00A0CheckKeySyms() 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.","state":0,"publishedAt":"2026-10-28T16:24:52.508+00:00","modifiedAt":"2026-10-28T16:24:52.508+00:00","affected":[{"ecosystem":"Vendor product","name":"xorg-x11-server","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"x.org\",\n                    \"product\": \"xorg-x11-server\",\n                    \"packageName\": \"xorg-x11-server\",\n                    \"repo\": \"https://gitlab.freedesktop.org/xorg/xserver\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"21.1.25\",\n                            \"versionType\": \"rpm\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"},{"ecosystem":"Vendor product","name":"xwayland","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"x.org\",\n                    \"product\": \"xwayland\",\n                    \"packageName\": \"xwayland\",\n                    \"repo\": \"https://gitlab.freedesktop.org/xorg/xserver\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"24.1.14\",\n                            \"versionType\": \"rpm\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":6.9,"severity":"MEDIUM"}],"references":["https://gitlab.freedesktop.org/xorg/xserver/-/commit/cea71d0273e4d5092aa9c6a8a770734c8935c02e"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-93524","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-93524","identifiers":["CVE-2026-93524"]},"retained":false,"historicalAffected":[]}],"coverage":[]}