Alerts This Week
Warning Icon 1 714
Alerts This Week
Warning Icon 1 714

Debian 11: Thunderbird Critical Code Execution Vulnerability DLA-4311-1

debian lts
Calendar Grey September 26, 2025
Dist Debian Esm H88
Several vulnerabilities found in Thunderbird may result in unauthorized code execution. Please update your Debian packages immediately.
Multiple security issues were discovered in Thunderbird, which could result in the execution of arbitrary code
Topics%20covered

Topics Covered

security advisory critical debian execution thunderbird

Summary

Debian follows the Thunderbird upstream releases. Support for the
128.x series has ended, so starting with this update we're now
following the 140.x series.

For Debian 11 bullseye, these problems have been fixed in version
1:140.3.0esr-1~deb11u1.

We recommend that you upgrade your thunderbird packages.

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

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
High
Critical

Package: thunderbird
Version: 1:140.3.0esr-1~deb11u1
CVE ID: CVE-2025-10527 CVE-2025-10528 CVE-2025-10529 CVE-2025-10532

Topics%20covered

Topics Covered

security advisory critical debian execution thunderbird

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here