vulnerability
MFSA2021-15 Firefox: Security Vulnerabilities fixed in Firefox ESR 78.10 (CVE-2021-29945)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:N/A:P) | Apr 19, 2021 | Apr 20, 2021 | Feb 10, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
Apr 19, 2021
Added
Apr 20, 2021
Modified
Feb 10, 2026
Description
The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. *Note: This issue only affected x86-32 platforms. Other platforms are unaffected.*. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
Solution
mozilla-firefox-esr-upgrade-78_10
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