vulnerability
Alpine Linux: CVE-2021-23987: Out-of-bounds Write
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | Mar 31, 2021 | Jun 17, 2022 | Mar 25, 2026 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Mar 31, 2021
Added
Jun 17, 2022
Modified
Mar 25, 2026
Description
Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. 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 ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.
Solutions
alpine-linux-upgrade-firefox-esralpine-linux-upgrade-firefoxalpine-linux-upgrade-mozjs78alpine-linux-upgrade-thunderbirdalpine-linux-upgrade-librewolf
Rapid7 Labs
2026 Global Threat Landscape Report
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