ID:12143 - Exploit for Out-of-bounds write in Mozilla Firefox - CVE-2024-29943

 
Main Vulnerability Database Exploits ID:12143 - Exploit for Out-of-bounds write in Mozilla Firefox - CVE-2024-29943

ID:12143 - Exploit for Out-of-bounds write in Mozilla Firefox - CVE-2024-29943

Published: November 28, 2025


Vulnerability identifier: #VU87735
Vulnerability risk: High
CVE-ID: CVE-2024-29943
CWE-ID: CWE-787
Exploitation vector: Remote access
Vulnerable software:
Mozilla Firefox

Link to public exploit:


Vulnerability description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to an error during range-based bounds check elimination when processing JavaScript objects. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger an out-of-bounds write and execute arbitrary code on the target system.


Remediation

Install updates from vendor's website.