Red Hat alert RHSA-2025:7547-01 (firefox)

An update for firefox is now available for Red Hat Enterprise Linux 8.2
Advanced Update Support.

Red Hat Product Security has rated this update as having a security impact of
Important. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

Mozilla Firefox is an open-source web browser, designed for standards
compliance, performance, and portability.

Security Fix(es):

* firefox: thunderbird: Privilege escalation in Firefox Updater
(CVE-2025-2817)

* firefox: thunderbird: Unsafe attribute access during XPath parsing
(CVE-2025-4087)

* firefox: thunderbird: Process isolation bypass using "javascript:" URI
links in cross-origin frames (CVE-2025-4083)

* firefox: thunderbird: Memory safety bugs fixed in Firefox 138, Thunderbird
138, Firefox ESR 128.10, and Thunderbird 128.10 (CVE-2025-4091)

* firefox: thunderbird: Memory safety bug fixed in Firefox ESR 128.10 and
Thunderbird 128.10 (CVE-2025-4093)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

This content is licensed under the Creative Commons Attribution 4.0
International License (https://creativecommons.org/licenses/by/4.0/). If you
distribute this content, or a modified version of it, you must provide
attribution to Red Hat Inc. and provide a link to the original.

Original: https://access.redhat.com/security/data/csaf/v2/advisories/2025/rhsa-2025_7547.json