RHSA-2025:10181 — Security Advisory

An update for firefox is now available for Red Hat Enterprise Linux 7 Extended Lifecycle 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: Content-Disposition header ignored when a file is included in an embed or object tag (CVE-2025-6430)

• firefox: Use-after-free in FontFaceSet (CVE-2025-6424)

• firefox: Incorrect parsing of URLs could have allowed embedding of youtube.com (CVE-2025-6429)

• firefox: The WebCompat WebExtension shipped with Firefox exposed a persistent UUID (CVE-2025-6425)

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.