Security Alert (A25-10-02): Multiple Vulnerabilities in Firefox

Description:

Mozilla has published the advisory (MFSA2025-80) to address multiple vulnerabilities in Firefox. A remote attacker could entice a user to open a web page with specially crafted content on a vulnerable browser to exploit the vulnerabilities.

Affected Systems:

• Firefox Windows versions prior to version 143.0.3

Impact:

Successful exploitation of the vulnerabilities could lead to remote code execution or information disclosure on an affected system.

Recommendation:

Mozilla has released new versions of the product to address the issues and they can be downloaded at the following URLs:
Firefox 143.0.3 (Windows)
https://www.mozilla.org/en-US/firefox/all/#product-desktop-release

Users of affected systems should follow the recommendations provided by the vendor and take immediate actions to mitigate the risk.

More Information:

• https://www.mozilla.org/en-US/security/advisories/mfsa2025-80/
• https://www.hkcert.org/security-bulletin/mozilla-products-multiple-vulnerabilities_20251002
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-11152 (to CVE-2025-11153)