Type conversion in Mozilla products - CVE-2026-4705
Published: March 24, 2026
Vulnerability identifier: #VU124314
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-4705
CWE-ID: CWE-704
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Firefox ESR
Firefox for Android
Mozilla Firefox
Firefox ESR
Firefox for Android
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to undefined behavior in the WebRTC: Signaling component when processing signaling messages. A remote attacker can trick the victim into visiting a specially crafted website to cause a denial of service.
How to mitigate CVE-2026-4705
Install security update from vendor's website.