cvedb.io
CVE-2021-4011
HIGH · CVSS 7.8
EPSS exploitation probability: 0%
Published 2021-12-17T17:15:13.530 · Last modified 2026-06-17T04:18:53.777

Summary

A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SwapCreateRegister function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

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.