Mozilla · Firefox · CVE-2020-12407
**Name of the Vulnerable Software and Affected Versions**
Firefox versions prior to 77
**Description**
The issue is related to a memory leak when using WebRender in Firefox. Under certain conditions, arbitrary GPU memory is leaked to the visible screen, making the leaked memory content visible to the user. However, this content is not observable from web content.
**Recommendations**
For versions prior to 77, update to version 77 or later to resolve the issue.