Type Confusion in Microsoft Edge - CVE-2025-21342
Published: February 7, 2025
Vulnerability identifier: #VU103696
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-21342
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a type confusion error. A remote attacker can trick the victim into visiting a specially crafted web page, trigger a type confusion error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft Edge
How to mitigate CVE-2025-21342
Install updates from vendor's website.
Microsoft Edge - update to 133.0.3065.51