cvedb.io
CVE-2026-34000
MEDIUM · CVSS 6.1
EPSS exploitation probability: 0%
Published 2026-05-05T16:16:11.647 · Last modified 2026-06-17T10:38:24.887

Summary

A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the `CheckSetGeom()` and `XkbAddGeomKeyAlias` functions, allows an attacker to read uninitialized or out-of-bounds memory. An attacker with a connection to the X11 server, either locally or remotely, can exploit this without user interaction. This could lead to the disclosure of memory contents or cause a denial of service by crashing the server.

Affected products

x.org — x_server

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.