{"id":"CVE-2026-94285","title":"An out-of-bounds read in libX11's byte-oriented codeset parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.","summary":"An out-of-bounds read in libX11's byte-oriented codeset parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.","severity":"medium","cvss":5.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","cwe":["CWE-125"],"vendor":"x.org","product":"libX11","affected":["libX11 < 1.8.14"],"published":"2026-09-28","updated":"2026-09-30","sourceUpdated":"2026-09-30T13:17:26.570","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-94285","references":[{"url":"https://gitlab.freedesktop.org/xorg/lib/libx11/-/merge_requests/310/diffs?commit_id=980868483446f24f9658d26aa5bfa42f3da6dd3a","label":"meissner@suse.de"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-94285.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-94285"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2542376"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-94285"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-94285"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-30T12:52:16.275635Z"},"epss":0.00147,"epssPercentile":0.03878,"ingestedAt":"2026-09-28T09:06:28.559Z","slug":"CVE-2026-94285","body":"## Overview\n\nAn out-of-bounds read in libX11's byte-oriented codeset parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Hardened Images · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-09-29 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-94285.json)","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":28.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}