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Alerts This Week
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Debian ThunderBird Critical Arbitrary Code Exec Vulnerability DSA-6242-1

debian
Calendar Grey May 1, 2026
Debian Logo
Critical security issues identified in thunderbird for Debian distributions can lead to arbitrary code execution.
Multiple security issues were discovered in Thunderbird, which could result in the execution of arbitrary code
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Topics Covered

security advisory critical debian arbitrary code execution thunderbird

Summary

For the oldstable distribution (bookworm), these problems have been fixed
in version 1:140.10.1esr-1~deb12u1.

For the stable distribution (trixie), these problems have been fixed in
version 1:140.10.1esr-1~deb13u1.

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/thunderbird

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: thunderbird
CVE ID: CVE-2026-7320 CVE-2026-7321 CVE-2026-7322 CVE-2026-7323

Topics%20covered

Topics Covered

security advisory critical debian arbitrary code execution thunderbird

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