CVE-2024-4769
5.9
MEDIUM
CVSS 3.1
EPSS 0.94%
Description
When importing resources using Web Workers, error messages would distinguish the difference between `application/javascript` responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.
How to fix CVE-2024-4769
To remediate CVE-2024-4769, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 115.11.0esr-1~deb11u1 or later
- —upgrade to 1:115.11.0-1~deb11u1 or later
Is CVE-2024-4769 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 115.11.0esr-1~deb11u1
- from 0, < 1:115.11.0-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |