CVE-2026-109089EUVD-2026-111138GHSA-XV92-4RH8-WP3R
libXi XGetDeviceControl Control Type Mismatch Heap Buffer Overflow
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 1.8.4
- 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 libXi library, part of the X Window System client-side input extension used on Linux and other Unix-like systems, is affected. A malicious X server can trigger a heap buffer overflow when libXi processes certain device control responses, which could potentially crash applications or lead to code execution.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
A buffer overflow when handling DEVICE_RESOLUTION in libXi before 1.8.4 could overflow a heap, triggered by a malicious X server.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- libXi
fixed in 1.8.4