CVE-2023-43785: Fedoraproject Fedora

Medium severity, CVSS 5.5. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system.

Affected products

• Fedoraproject Fedora: version 38 only
• Red Hat Enterprise Linux: version 8.0 only; version 9.0 only
• X.org LIBX11: before 1.8.7 (fixed in 1.8.7)

Published 2023-10-10. Last modified 2026-06-17.