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

Debian 11: DLA-4253-1 Thunderbird Critical Security Flaws

debian lts
Calendar Grey July 27, 2025
Dist Debian Esm H88
An important Debian LTS update addressing various security vulnerabilities in Firefox, which could lead to unauthorized code execution. Upgrade immediately!
Multiple security issues were discovered in Thunderbird, which could result in the execution of arbitrary code
Topics%20covered

Topics Covered

security advisory security issue critical debian arbitrary execution thunderbird

Summary

For Debian 11 bullseye, these problems have been fixed in version
1:128.13.0esr-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: 1:128.13.0esr-1~deb11u1
CVE ID: CVE-2025-8027 CVE-2025-8028 CVE-2025-8029 CVE-2025-8030

Topics%20covered

Topics Covered

security advisory security issue critical debian arbitrary execution thunderbird

Get the latest News and Insights

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

Your message here