vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-23995): Firefox vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:H/Au:N/C:P/I:P/A:P) | Apr 27, 2021 | Apr 27, 2021 | Mar 27, 2026 |
Severity
5
CVSS
(AV:N/AC:H/Au:N/C:P/I:P/A:P)
Published
Apr 27, 2021
Added
Apr 27, 2021
Modified
Mar 27, 2026
Description
When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
Solutions
ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird
References
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.