CVE-2025-1934
6.5
MEDIUM
CVSS 3.1
EPSS 0.34%
Description
It was possible to interrupt the processing of a RegExp bailout and run additional JavaScript, potentially triggering garbage collection when the engine was not expecting it. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.
How to fix CVE-2025-1934
To remediate CVE-2025-1934, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 128.8.0esr-1~deb11u1 or later
- —upgrade to 1:128.8.0esr-1~deb11u1 or later
Is CVE-2025-1934 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 128.8.0esr-1~deb11u1
- from 0, < 1:128.8.0esr-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |