cvedb.io
CVE-2026-33999
HIGH · CVSS 7.8
EPSS exploitation probability: 0%
Published 2026-04-23T16:16:24.623 · Last modified 2026-06-30T03:18:49.273

Summary

A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an attacker with local or remote X11 server access to trigger a buffer read overrun. This can lead to memory-safety violations and potentially a denial of service (DoS) or other severe impacts.

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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.