CVE-2021-23994

Name of the Vulnerable Software and Affected Versions: Firefox ESR versions prior to 78.10 Thunderbird versions prior to 78.10 Firefox versions prior to 88

Description: The issue is related to a WebGL component, specifically a framebuffer that was not initialized early enough, resulting in memory corruption and an out of bounds write. This can lead to arbitrary code execution by a remote attacker.

Recommendations: For Firefox ESR versions prior to 78.10, update to version 78.10 or later. For Thunderbird versions prior to 78.10, update to version 78.10 or later. For Firefox versions prior to 88, update to version 88 or later.