ELA-1845-1 firefox-esr security update

Package	firefox-esr
Version	153.5.0esr-1~deb11u1 (bullseye)
Related CVEs	CVE-2026-109705 CVE-2026-109706 CVE-2026-109707 CVE-2026-109708 CVE-2026-109709 CVE-2026-109710 CVE-2026-109711 CVE-2026-109712 CVE-2026-109713 CVE-2026-109715 CVE-2026-109716 CVE-2026-109717 CVE-2026-109718 CVE-2026-109719 CVE-2026-109720 CVE-2026-109721 CVE-2026-109722 CVE-2026-109723 CVE-2026-109724 CVE-2026-109725 CVE-2026-109726 CVE-2026-109727 CVE-2026-109728 CVE-2026-109729 CVE-2026-109730 CVE-2026-109731 CVE-2026-109732 CVE-2026-109733 CVE-2026-109734 CVE-2026-109736 CVE-2026-109737 CVE-2026-109738 CVE-2026-109741 CVE-2026-109742 CVE-2026-109743 CVE-2026-109744 CVE-2026-109745 CVE-2026-109751 CVE-2026-109752 CVE-2026-109753 CVE-2026-109754 CVE-2026-109756 CVE-2026-109757 CVE-2026-109759 CVE-2026-109760 CVE-2026-109762 CVE-2026-109763 CVE-2026-109764 CVE-2026-109765 CVE-2026-109766 CVE-2026-109767 CVE-2026-109770 CVE-2026-109775 CVE-2026-109776 CVE-2026-109777 CVE-2026-109778 CVE-2026-109781 CVE-2026-109782 CVE-2026-109783

Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, information disclosure, mitigation bypass or privilege escalation.

For Debian 11 bullseye, these problems have been fixed in version 153.5.0esr-1~deb11u1.

We recommend that you upgrade your firefox-esr packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.