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Alerts This Week
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Alerts This Week
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Debian Linux Major Privilege Escalation Denial of Service Issues DSA-6393-1

debian
Calendar Grey July 21, 2026
Scroller Debian
Multiple vulnerabilities in the Linux kernel for Debian can cause privilege escalation and service disruptions. Update recommended.
Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks
Topics%20covered

Topics Covered

security advisory denial of service information leak debian privilege escalation important

Summary

For the stable distribution (trixie), these problems have been fixed in
version 6.12.96-1.

We recommend that you upgrade your linux packages.

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

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
important
Lowest
Low
Medium
High
Critical

Package: linux
CVE ID: CVE-2025-21807 CVE-2026-46093 CVE-2026-53027 CVE-2026-53226

Topics%20covered

Topics Covered

security advisory denial of service information leak debian privilege escalation important

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