CVE-2021-43538
By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that ha
By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
MEDIUM · CVSS 4.3
EPSS 0.00275
Monitor
- No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1
YARA rules0