CVE-2023-4057
9.8
CRITICAL
CVSS 3.1
EPSS 0.23%
Description
Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0. 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 < 116, Firefox ESR < 115.1, and Thunderbird < 115.1.
How to fix CVE-2023-4057
To remediate CVE-2023-4057, upgrade the affected package to a fixed version below.
- —upgrade to 115.1.0esr-1 or later
- —upgrade to 1:115.1.0-1 or later
Is CVE-2023-4057 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 115.1.0esr-1
- from 0, < 1:115.1.0-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |