Is CVE-2026-88806 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-88806?

CVE-2026-88806 has a CVSS v3 severity of HIGH (7.5).

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Description

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