![Mozilla releases Firefox 84.0.2, fix for critical vulnerability (CVE-2020-16044)](https://securezoo.com/wp-content/uploads/2019/12/Update3.jpg)
The Mozilla Foundation has released Firefox 84.0.2 that includes a security fix for a Critical vulnerability CVE-2020-16044.
An attacker could exploit the vulnerability to take control of impacted systems.
As part of Mozilla Foundation Security Advisory 2021-01, Firefox 84.0.2 patched a Critical ‘Use-after-free write’ vulnerability CVE-2020-16044.
![](https://securezoo.com/wp-content/uploads/2021/01/CVE-2020-16044-512x266.jpg)
According to Mozilla, “a malicious peer could have modified a COOKIE-ECHO chunk in a SCTP packet in a way that potentially resulted in a use-after-free.”
The vulnerability update also affects Firefox for Android 84.1.3, and Firefox ESR 78.6.1.