Here is additional information --
www.zerodayinitiative.com
github.com
As of 2025, most NT systems have been patched.

ZDI-19-121
(0Day) Microsoft Windows contact File Insufficient UI Warning Remote Code Execution Vulnerability
GitHub - wlsfla/ZDI-CAN-7591: Windows Contact File HTML Injection Mailto: Link RCE 0day / ZDI-CAN-7591
Windows Contact File HTML Injection Mailto: Link RCE 0day / ZDI-CAN-7591 - wlsfla/ZDI-CAN-7591
As of 2025, most NT systems have been patched.