CVE-2026-70229: Critical Active Directory Domain Services RCE Fixed in October 2026, Is Your Domain Controller Below the Fixed Build? CVE-2026-70229 is a critical Active Directory Domain Services remote code execution flaw fixed on October 13, 2026. A PowerShell build check for your domain controllers, the real result from my lab, and what is and is not confirmed. Oct 24, 2026 7 min read Active Directory