VULNERABILITY INTELLIGENCE
CVE-2024-3855
CVSS score6.5 MEDIUM
EPSS probability0.40%
CISA KEVNot currently listed
Published2024-04-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Description
In certain cases the JIT incorrectly optimized MSubstr operations, which led to out-of-bounds reads. This vulnerability affects Firefox < 125.
Weakness classification
- CWE-125: Out-of-bounds Read
Primary references
- security@mozilla.org — Issue Tracking
- security@mozilla.org — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory