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Alerts This Week
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Alerts This Week
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Debian LTS DLA-4694-1 NSS Critical Denial Of Service Code Execution

debian lts
Calendar Grey July 22, 2026
Scroller Debian Lts
This advisory details critical security updates for NSS in Debian 11 and 12 to fix denial of service and code execution issues.
Several vulnerabilities were discovered in NSS, a set of cryptographic libraries, which may result in or denial of service or potentially the execution of arbitrary code
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Topics Covered

security advisory denial of service critical debian arbitrary code NSS

Summary

For Debian 11 bullseye, these problems have been fixed in version
2:3.61-1+deb11u6.

For Debian 12 bookworm, these problems have been fixed in version
2:3.87.1-1+deb12u3.

We recommend that you upgrade your nss packages.

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

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



Severity
critical
Lowest
Low
Medium
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Critical

Package: nss
Version: 2:3.61-1+deb11u6 2:3.87.1-1+deb12u3
CVE ID: CVE-2026-6766 CVE-2026-6767 CVE-2026-6772 CVE-2026-12318
Debian Bug:

Topics%20covered

Topics Covered

security advisory denial of service critical debian arbitrary code NSS

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