TI-2024-04437 Aliases CVE-2024-4764 GHSA-rqmx-jjch-gmgj

Use after free in Mozilla Firefox

MEDIUM 50CWE-416Published 2024-05-14 · Updated 2024-08-01

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

Multiple WebRTC threads could have claimed a newly connected audio input leading to use-after-free. This vulnerability affects Firefox < 126.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00571 47th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed Firefox (Mozilla): 126

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Mozilla	Firefox	before 126	126	Patch available	CNA

Firefox VendorMozilla Affected before 126 Fixed in 126 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:mozilla:firefox:::::-:::*	before 126.0	Vulnerable	Mozilla

cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* Versions before 126.0 Vulnerable ·Mozilla

Remediation

Fix · CNA Firefox (Mozilla) Fixed in 126

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2024-05-14
Mozilla Firefox 126
16 records Highest priority Priority HIGH 1 HIGH, 7 MEDIUM, 8 LOW
Other records, highest priority first
- TI-2024-04069 Improper check for unusual conditions in Mozilla FirefoxPriority HIGH 78
- TI-2024-04444 Use after free in Mozilla FirefoxPriority MEDIUM 44
- TI-2024-04451 Memory safety bugs present in Firefox 125.Priority MEDIUM 43
Show all 16 records →

Timeline

2026-10-02 Threatist record created from CVE-2024-4764
2026-10-03 Alias added: GHSA-rqmx-jjch-gmgj

References

Exploit 1

https://bugzilla.mozilla.org/show_bug.cgi?id=1879093

Advisory 1

https://www.mozilla.org/security/advisories/mfsa2024-21/

TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8

See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences