CVE-2026-94284

An out-of-bounds read vulnerability in libX11's XIM trigger-key registration parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.

  • Published Sep 28, 2026
  • CVSS 5.5 medium
  • 0.1% chance of exploitation in the next 30 days (EPSS)
  • A fix is available

Affected software

CVE-2026-94284 at the National Vulnerability Database