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Alerts This Week
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Debian xorg-server Critical Privilege Escalation Vulnerability DSA-6370-1

debian
Calendar Grey June 27, 2026
Debian Logo
Critical vulnerabilities in Xorg X server on Debian require immediate upgrade to prevent privilege escalation.
Several vulnerabilities were discovered in the Xorg X server, which may result in privilege escalation if the X server is running privileged
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Topics Covered

security advisory critical debian privilege escalation vulnerability Xorg server

Summary

For the stable distribution (trixie), these problems have been fixed in
version 2:21.1.16-1.3+deb13u3.

We recommend that you upgrade your xorg-server packages.

For the detailed security status of xorg-server please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/xorg-server

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/



Severity
critical
Lowest
Low
Medium
High
Critical

Package: xorg-server
CVE ID: CVE-2026-50256 CVE-2026-50257 CVE-2026-50258 CVE-2026-50259

Topics%20covered

Topics Covered

security advisory critical debian privilege escalation vulnerability Xorg server

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