CVE-2026-88812EUVD-2026-111276GHSA-PRMG-8FM6-8P8H
X.Org Server XKB SetGeometry TextDoodad Double Free
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 21.1.25, 24.1.14
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The X.Org X Server and X Wayland components, prior to their patched releases, are affected by a memory-handling flaw in the XKB keyboard geometry code. A connected client can exploit this double free to crash the server or potentially run code within the server's context.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
A double free in XKB SetGeometryin X.Org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by attached clients to cause a crash or potentially code in the x server context.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- xorg-x11-server
fixed in 21.1.25
- xwayland
fixed in 24.1.14