VULNERABILITY INTELLIGENCE

CVE-2020-12407

CVSS score6.5 MEDIUM

EPSS probability0.97%

CISA KEVNot currently listed

Published2020-07-09

Last modified2026-06-17

Description

Mozilla Developer Nicolas Silva found that when using WebRender, Firefox would under certain conditions leak arbitrary GPU memory to the visible screen. The leaked memory content was visible to the user, but not observable from web content. This vulnerability affects Firefox < 77.