A flaw was found in libX11. An out-of-bounds read vulnerability exists in the X Input Method (XIM) trigger-key registration parser. A malicious X server can exploit this flaw by sending specially crafted trigger-key registration data to connected client applications, causing them to crash and resulting in a Denial of Service (DoS).
Last checked: 2026-09-30 15:05 UTC
No exploitation evidence · CISA Coordinator (Assessed 2026-09-30 12:46 UTC)
Fix evidence last checked: 2026-10-22 06:27 UTC
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