VulnerabilityAnalyzed
CVE-2024-3853
A use-after-free could result if a JavaScript realm was in the process of being initialized when a garbage collection started.
HIGH 7.5EPSS 0.36%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A use-after-free could result if a JavaScript realm was in the process of being initialized when a garbage collection started. This vulnerability affects Firefox < 125.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.36% probability · 29th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- mozilla/firefox
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1884427Issue Tracking
- https://www.mozilla.org/security/advisories/mfsa2024-18/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1884427Issue Tracking
- https://www.mozilla.org/security/advisories/mfsa2024-18/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.