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Debian LTS Advisory DLA-4546-1 [email protected]
https://www.debian.org/lts/security/ Emilio Pozuelo Monfort
April 23, 2026 https://wiki.debian.org/LTS
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Package : firefox-esr
Version : 140.10.0esr-1~deb11u1
CVE ID : CVE-2026-6746 CVE-2026-6747 CVE-2026-6748 CVE-2026-6749
CVE-2026-6750 CVE-2026-6751 CVE-2026-6752 CVE-2026-6753
CVE-2026-6754 CVE-2026-6757 CVE-2026-6761 CVE-2026-6762
CVE-2026-6763 CVE-2026-6764 CVE-2026-6765 CVE-2026-6766
CVE-2026-6767 CVE-2026-6769 CVE-2026-6770 CVE-2026-6771
CVE-2026-6772 CVE-2026-6776 CVE-2026-6785 CVE-2026-6786
Multiple security issues have been found in the Mozilla Firefox web
browser, which could potentially result in the execution of arbitrary
code, spoofing, information disclosure or privilege escalation.
For Debian 11 bullseye, these problems have been fixed in version
140.10.0esr-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/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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