Description:

Mozilla has published a security advisory (MFSA 2021-01) to address a vulnerability 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 vulnerability.

Affected Systems:

• Firefox ESR prior to version 78.6.1
• Firefox prior to version 84.0.2

Impact:

Successful exploitation of the vulnerability could lead to arbitrary code execution 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 84.0.2 for Windows, Macintosh and Linux
  https://www.mozilla.org/en-US/firefox/all/
  
  
• Firefox ESR 78.6.1 for Windows, Macintosh and Linux
  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.

More Information:

https://www.mozilla.org/en-US/security/advisories/mfsa2021-01/
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16044