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A malicious X server could exploit a buffer overflow in libX11 before 1.8.14 during handling of XkbGetMap overflowing the key_sym_map.

High CVSS 7.5
CVECVE-2026-88806
First seen2026-09-22 05:16 UTC
Disclosed2026-09-21 14:17 UTC
Last updated2026-09-22 05:16 UTC
Channel statusauto

Summary

A malicious X server could exploit a buffer overflow in libX11 before 1.8.14 during handling of XkbGetMap overflowing the key_sym_map.

In-depth triage

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Sources

  • NVD DATABASE

Original Links

Timeline

  1. nvd_ingest NVD