CVE-2022-22746
Mozilla: Calling into reportValidity could have lead to fullscreen window spoof
Severity
ImportantRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · January 11, 2022
Updated · November 21, 2025
Description
The Mozilla Foundation Security Advisory describes this flaw as:
A race condition could have allowed bypassing the fullscreen notification which could have lead to a fullscreen window spoof being unnoticed. This bug only affects Thunderbird for Windows. Other operating systems are unaffected.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 7.5CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-1021 · Improper Restriction of Rendered UI Layers or Frames