RHSA-2025:7543: Important: firefox security update
Important: firefox security update
Other sources
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.
— Red Hat
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2025:7543?
RHSA-2025:7543 is categorized as an Important security update due to a privilege escalation vulnerability in Firefox Updater.
How do I fix RHSA-2025:7543?
To fix RHSA-2025:7543, update Firefox to version 128.10.0-1.el8_8 or later.
What vulnerabilities are addressed in RHSA-2025:7543?
RHSA-2025:7543 addresses a privilege escalation vulnerability identified as CVE-2025-2817.
What software is affected by RHSA-2025:7543?
RHSA-2025:7543 affects multiple Firefox packages including the standard and debug versions for various architectures.
Who issued the advisory for RHSA-2025:7543?
The advisory for RHSA-2025:7543 was issued by Red Hat.