Microsoft addressed 71 vulnerabilities in its December Patch Tuesday update, including a critical zero-day flaw. Of these, 59 vulnerabilities affect various versions of Windows, including Windows 10, Windows 11, and Windows Server. CVE-2024-49138 is a high-risk buffer overflow issue that allows privilege escalation and could enable full control over affected systems. Microsoft classified 16 Remote Code Execution (RCE) vulnerabilities as critical, with nine related to the Remote Desktop service. CVE-2024-49112 affects the Lightweight Directory Access Protocol (LDAP) and could allow code injection without user login. CVE-2024-49117 affects Hyper-V, allowing code execution from a guest system on the host system. Additionally, eight security vulnerabilities in Microsoft Office were resolved, including three RCE vulnerabilities. CVE-2024-49063 is the first identified security flaw in Microsoft's open-source AI project, Muzic. The next Patch Tuesday is scheduled for January 14, 2025.