CVE-2026-93523EUVD-2026-112256GHSA-2MCH-VXW7-CCC2
X.Org Server XInput2 PassiveUngrabDevice Out-of-Bounds Write
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 XWayland display servers are affected. A remote or local authenticated X client could send a malformed XInput2 request to cause a heap overflow, which may crash the server or potentially allow code execution with the server's privileges.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in 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