Spoofing attack in Microsoft Edge - CVE-2025-65046
Published: December 18, 2025
Vulnerability identifier: #VU120202
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-65046
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Microsoft Edge
Microsoft Edge
Detailed vulnerability description
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data. A malicious website can show an extension's popup over a permission prompt or screen share dialog allowing the extension to spoof parts of the prompt's UI that shows its origin.
How to mitigate CVE-2025-65046
Install updates from vendor's website.