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Debian Bookworm DSA-6149-1 NSS Critical Integer Overflow CVE-2026-2781

debian
Calendar Grey February 26, 2026
Debian Logo
Integer overflow fix in NSS for Debian oldstable and stable distributions. Upgrade now to protect your system.
Clay Ver Valen discovered an integer overflow in the AES-GCM implementation of the Mozilla Network Security Service libraries
Topics%20covered

Topics Covered

security advisory critical NSS oldstable AES-GCM bookworm

Summary

For the oldstable distribution (bookworm), this problem has been fixed
in version 2:3.87.1-1+deb12u2.

For the stable distribution (trixie), this problem has been fixed in
version 2:3.110-1+deb13u1.

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/source-package/nss

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: nss
CVE ID: CVE-2026-2781

Topics%20covered

Topics Covered

security advisory critical NSS oldstable AES-GCM bookworm

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