{"id":"CVE-2023-43785","title":"Libx11: out-of-bounds memory access in _xkbreadkeysyms()","summary":"A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","cvssSource":"cna","cwe":["CWE-787"],"vendor":"Red Hat","product":"libX11","affected":["libX11 < 1.8.7","libX11 (all versions)","libX11 (all versions)","libX11","libX11"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-04-25T15:44:16.523489Z"},"published":"2023-10-10","updated":"2026-11-07","sourceUpdated":"2026-11-07T11:32:45.408Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-43785","references":[{"url":"https://access.redhat.com/errata/RHSA-2024:2145","label":"RHSA-2024:2145"},{"url":"https://access.redhat.com/errata/RHSA-2024:2973","label":"RHSA-2024:2973"},{"url":"https://access.redhat.com/security/cve/CVE-2023-43785"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2242252","label":"RHBZ#2242252"}],"tags":["cve.org"],"epss":0.00669,"epssPercentile":0.522,"ingestedAt":"2026-11-07T12:16:41.106Z","slug":"CVE-2023-43785","body":"## Overview\n\nA vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system.\n\n## Affected\n\n- `libX11 < 1.8.7`\n- `libX11 (all versions)`\n- `libX11 (all versions)`\n- `libX11`\n- `libX11`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}