vulnerability
CentOS Linux: CVE-2021-23978: Critical: firefox security update (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | Feb 24, 2021 | Feb 25, 2021 | May 25, 2023 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Feb 24, 2021
Added
Feb 25, 2021
Modified
May 25, 2023
Description
Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. 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 < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
Solutions
centos-upgrade-firefoxcentos-upgrade-firefox-debuginfocentos-upgrade-firefox-debugsourcecentos-upgrade-thunderbirdcentos-upgrade-thunderbird-debuginfocentos-upgrade-thunderbird-debugsource
References
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.