vulnerability
MFSA2021-10 Firefox: Security Vulnerabilities fixed in Firefox 87 (CVE-2021-23988)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | Mar 23, 2021 | Mar 24, 2021 | Aug 11, 2025 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Mar 23, 2021
Added
Mar 24, 2021
Modified
Aug 11, 2025
Description
Mozilla developers reported memory safety bugs present in Firefox 86. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 87.
Solution
mozilla-firefox-upgrade-87_0
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