CVE-2026-93542
An out-of-bounds read in libXi's XI2 class parsing via size_classes() and copy_classes() in libXi before 1.8.4 could be used by malicous servers to crash the X client.
- Published Sep 24, 2026
- CVSS 6.5 medium
- 0.2% chance of exploitation in the next 30 days (EPSS)
- A fix is available