Debian 11 bullseye: DLA-4191-1 critical: firefox-esr code execution threat
debian lts
May 29, 2025
Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code or cross-origin leaks
Topics Covered
Summary
For Debian 11 bullseye, these problems have been fixed in version
128.11.0esr-1~deb11u1.
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 LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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Severity
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Package: firefox-esr
Version: 128.11.0esr-1~deb11u1
CVE ID: CVE-2025-5263 CVE-2025-5264 CVE-2025-5266 CVE-2025-5267
Topics Covered
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