{"affected":[{"defaultStatus":"unaffected","packageName":"xorg-x11-server","product":"xorg-x11-server","source":"CNA: suse","vendor":"x.org","versions":[{"lessThan":"21.1.25","status":"affected","version":"0","versionType":"rpm"}]},{"defaultStatus":"unaffected","packageName":"xwayland","product":"xwayland","source":"CNA: suse","vendor":"x.org","versions":[{"lessThan":"24.1.14","status":"affected","version":"0","versionType":"rpm"}]}],"cveId":"CVE-2026-93520","cwes":["CWE-122"],"description":"A heap buffer overflow caused by mismatching size calculations between XkbAllocNames and  ChangeKeycodeRange in X.org X server before 2.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.","epss":{"date":"2026-11-06","percentile":0.10214,"score":0.00202},"exploits":[],"kev":null,"metrics":[{"score":7.8,"severity":"high","source":"CNA: suse","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},{"score":7.8,"severity":"high","source":"NVD: meissner@suse.de","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794028742510,"publishedAt":1793199590140,"references":[{"source":"CNA: suse","tags":["patch"],"url":"https://gitlab.freedesktop.org/xorg/xserver/-/commit/b941a473e06f26a407a9adb15759be79f7418e86"},{"source":"meissner@suse.de","tags":[],"url":"https://gitlab.freedesktop.org/xorg/xserver/-/commit/b941a473e06f26a407a9adb15759be79f7418e86"}],"remediation":[{"kind":"fix","source":"CNA: suse","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://gitlab.freedesktop.org/xorg/xserver/-/commit/b941a473e06f26a407a9adb15759be79f7418e86"}],"revision":"516bd2d0f4414dcae4abc129db0a5d4f8c4d4d892a1a5687d9400b2f8db6dde4","sources":[{"modifiedAt":1794027353988,"name":"CNA: suse","retrievedAt":1794028412592,"url":"https://www.cve.org/CVERecord?id=CVE-2026-93520"},{"modifiedAt":1794028742510,"name":"NVD","retrievedAt":1794032143404,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93520"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793992394221,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-93520"}],"ssvc":{"assessedAt":1793923200000,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"X.Org Server XKB ChangeKeycodeRange Heap Out-of-Bounds Write","updatedAt":1794032143404}