ZDI-26-622: Microsoft Windows IKEv2 AES-GCM Decryption Integer Underflow Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Windows. Authentication is not required to exploit this vulnerability, but only systems with specific IPsec configurations are vulnerable. The ZDI has assigned a CVSS rating of 8.1. The following CVEs are assigned: CVE-2026-50696.