vulnerability
MFSA2021-33 Firefox: Security Vulnerabilities fixed in Firefox 91 (CVE-2021-29982)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:P/I:N/A:N) | Aug 10, 2021 | Aug 12, 2021 | Aug 11, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
Aug 10, 2021
Added
Aug 12, 2021
Modified
Aug 11, 2025
Description
Due to incorrect JIT optimization, we incorrectly interpreted data from the wrong type of object, resulting in the potential leak of a single bit of memory. This vulnerability affects Firefox < 91 and Thunderbird < 91.
Solution
mozilla-firefox-upgrade-91_0
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.