CVE-2021-43538
By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full scre
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 91.4.0, 95
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Mozilla Thunderbird
fixed in 91.4.0
- Mozilla Firefox ESR
fixed in 91.4.0
- Mozilla Firefox
fixed in 95