vulnerability
MFSA2021-52 Firefox: Security Vulnerabilities fixed in Firefox 95 (CVE-2021-43537)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | Dec 7, 2021 | Dec 8, 2021 | Mar 27, 2026 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Dec 7, 2021
Added
Dec 8, 2021
Modified
Mar 27, 2026
Description
An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
Solution
mozilla-firefox-upgrade-95_0
Rapid7 Labs
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