Tue. Nov 24th, 2020

Firefox Vulnerability Being Exploited in the Wild

Mozilla Firefox is urging users to update their browsers to the latest version, immediately.


According to TechCrunch, hackers are using a vulnerability in the Firefox browser to carry out “targeted attacks” against users.


The vulnerability, found in Firefox’s just-in-time compiler, could allow attackers to take control of a user’s entire operating system.


In addition to Mozilla’s security advisory, the Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency (CISA) also issued a warning about the vulnerability.

“Mozilla has released security updates to address a vulnerability in Firefox and Firefox ESR. An attacker could exploit this vulnerability to take control of an affected system. This vulnerability was detected in exploits in the wild.

The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review the Mozilla Security Advisory for Firefox 72.0.1 and Firefox ESR 68.4.1 and apply the necessary updates.”


To update your Firefox browser:

  • On a Mac: launch Firefox and click About > Firefox and click the “Restart to update Firefox” button.
  • On a PC: launch Firefox and go under either Options > Firefox Updates or Options > Advanced > Update to update Firefox.