Debian: firefox-esr Critical Privilege Escalation DSA-6078-1 CVE-2025-14321
debian
December 10, 2025
Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, same-origin policy b...
Topics Covered
Summary
For the oldstable distribution (bookworm), these problems have been fixed
in version 140.6.0esr-1~deb12u1.
For the stable distribution (trixie), these problems have been fixed in
version 140.6.0esr-1~deb13u1.
We recommend that you upgrade your firefox-esr packages.
For the detailed security status of firefox-esr please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/firefox-esr
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/
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Severity
important
Lowest
Low
Medium
High
Critical
Package: firefox-esr
CVE ID: CVE-2025-14321 CVE-2025-14322 CVE-2025-14323 CVE-2025-14324
Topics Covered
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