{"id":"CVE-2026-94286","title":"An out-of-bounds read in libXtst's RECORD reply parser in libXtst before 1.2.6 could be used by malicious X servers to crash attached X clients.","summary":"An out-of-bounds read in libXtst's RECORD reply parser in libXtst before 1.2.6 could be used by malicious X servers to crash attached X clients.","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","cwe":["CWE-126","CWE-125"],"vendor":"x.org","product":"libXtst","affected":["libXtst < 1.2.6"],"published":"2026-09-28","updated":"2026-09-30","sourceUpdated":"2026-09-30T13:17:26.710","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-94286","references":[{"url":"https://gitlab.freedesktop.org/xorg/lib/libxtst/-/merge_requests/10/diffs?commit_id=16023c86070e6af9407330deea3938fcef75815b","label":"meissner@suse.de"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-94286.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-94286"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2542377"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-94286"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-94286"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-30T12:58:55.309961Z"},"epss":0.00202,"epssPercentile":0.10093,"ingestedAt":"2026-09-28T09:06:28.557Z","slug":"CVE-2026-94286","body":"## Overview\n\nAn out-of-bounds read in libXtst's RECORD reply parser in libXtst before 1.2.6 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** · Important · 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 10, Red Hat Enterprise Linux 6, 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-2026-94286.json)","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}