RLSA-2026:7672 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: libpng: libpng: Arbitrary code execution due to use-after-free vulnerability CVE-2026-33416 libpng: libpng: Information disclosure and denial of service via out-of-bound...

firefox: thunderbird: Incorrect boundary conditions in the Graphics component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Graphics component...

Mozilla Thunderbird < 140.9.1

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 140.9.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-29 advisory. - Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and...

CVE-2026-0886

Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...