Critical Vulnerabilities in Microsoft Windows Operating Systems

This CISA advisory summarizes Microsoft’s January 14, 2020 Patch Tuesday, highlighting critical vulnerabilities—CVE-2020-0601 (Windows CryptoAPI ECC certificate validation bypass) and RDP remote code execution issues (CVE-2020-0609/0610/0611)—describes their potential impacts (MITM, signed malware bypass, remote code execution), and urges prioritized, immediate patching along with detection and mitigation guidance.