Type Confusion in Microsoft Edge - CVE-2026-72984
Published: August 31, 2026
Vulnerability identifier: #VU146314
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-2026-72984
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.
The vulnerability exists due to access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) when rendering a specially crafted webpage. A remote attacker can host a specially crafted webpage and convince a user to visit it to execute arbitrary code.
Successful exploitation could allow code execution within the browser renderer process. User interaction is required.
Affected software
Microsoft Edge
How to mitigate CVE-2026-72984
Install security update from vendor's website.
Microsoft Edge - update to 152.0.4191.53