Security Alert (A25-07-18): Multiple Vulnerabilities in Firefox

Description:

Mozilla has published the advisories (MFSA2025-56, MFSA2025-57, MFSA2025-58 and MFSA2025-59) to address multiple vulnerabilities in Firefox browser. A remote attacker could entice a user running a vulnerable browser to visit a web page with specially crafted content to exploit the vulnerabilities.

Affected Systems:

• Firefox Windows versions prior to version 141
• Firefox ESR Windows versions prior to version 115.26, 128.13, 140.1

Impact:

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

Recommendation:

Mozilla has released new version of the product to address the issues and they can be downloaded at the following URLs:
Firefox 141 (Windows)
https://www.mozilla.org/en-US/firefox/all/#product-desktop-release
Firefox ESR 115.26, 128.13, 140.1 (Windows)
https://www.mozilla.org/en-US/firefox/all/#product-desktop-esr

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/mfsa2025-56/
• https://www.mozilla.org/en-US/security/advisories/mfsa2025-57/
• https://www.mozilla.org/en-US/security/advisories/mfsa2025-58/
• https://www.mozilla.org/en-US/security/advisories/mfsa2025-59/
• https://www.hkcert.org/security-bulletin/mozilla-products-multiple-vulnerabilities_20250723
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-8027 (to CVE-2025-8044)