CVE-2025-10532
6.5
MEDIUM
CVSS 3.1
EPSS 0.10%
Description
Incorrect boundary conditions in the JavaScript: GC component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
How to fix CVE-2025-10532
To remediate CVE-2025-10532, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 140.3.0esr-1~deb11u2 or later
- Debian/thunderbird—upgrade to 1:140.3.0esr-1~deb11u1 or later
Is CVE-2025-10532 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 140.3.0esr-1~deb11u2
- from 0, < 1:140.3.0esr-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |