Security Alert (A21-02-04): Vulnerability in Firefox
09 February 2021
Mozilla has published an advisory (MFSA 2021-06) to address a vulnerability in Firefox browser. Only Windows versions are affected. A remote attacker could entice a user running a vulnerable browser to visit a web page with specially crafted content to exploit the vulnerabilities.
Firefox ESR Windows versions prior to version 78.7.1
Firefox Windows versions prior to version 85.0.1
Successful exploitation of the vulnerability could lead to buffer overflow on an affected system.
Mozilla has released new versions of the product to address the issues and they can be downloaded at the following URLs:
Firefox 85.0.1 for Windows https://www.mozilla.org/en-US/firefox/all/
Firefox ESR 78.7.1 for Windows https://www.mozilla.org/en-US/firefox/organizations/all/
Users of affected systems should follow the recommendations provided by the product vendor and take immediate actions to mitigate the risk.