#VU118263 Use-after-free in Mozilla products - CVE-2025-13020
Published: November 11, 2025
Vulnerability identifier: #VU118263
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-13020
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Firefox
Firefox ESR
Firefox for Android
Mozilla Firefox
Firefox ESR
Firefox for Android
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to crash the browser.
The vulnerability exists due to a use-after-free error in the WebRTC: Audio/Video component. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser.
Remediation
Install updates from vendor's website.