ID:12374 - Exploit for Use-after-free in Mozilla products - CVE-2025-14321

 
Main Vulnerability Database Exploits ID:12374 - Exploit for Use-after-free in Mozilla products - CVE-2025-14321

ID:12374 - Exploit for Use-after-free in Mozilla products - CVE-2025-14321

Published: February 6, 2026


Vulnerability identifier: #VU119413
Vulnerability risk: High
CVE-ID: CVE-2025-14321
CWE-ID: CWE-416
Exploitation vector: Remote access
Vulnerable software:
Mozilla Firefox
Firefox for Android
Firefox ESR

Link to public exploit:


Vulnerability description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the the WebRTC Signaling component. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


Remediation

Install updates from vendor's website.