vulnerability
Ubuntu: (Multiple Advisories) (CVE-2023-6212): Firefox vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:C/I:C/A:C) | Nov 21, 2023 | Nov 24, 2023 | Mar 27, 2026 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
Nov 21, 2023
Added
Nov 24, 2023
Modified
Mar 27, 2026
Description
Memory safety bugs present in Firefox 119, Firefox ESR 115.4, and Thunderbird 115.4. 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 < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
Solutions
ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird
Rapid7 Labs
2026 Global Threat Landscape Report
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