December 2024 Patch Tuesday: Addressing a High-Volume of Critical Vulnerabilities and an Actively Exploited Zero-Day

Microsoft’s December 2024 Patch Tuesday update fixes 71 vulnerabilities across Windows and related software. These include a large set of critical Remote Code Execution (RCE) flaws, as well as multiple Elevation of Privilege (EoP) issues. This month’s release also patches a zero-day vulnerability already exploited in the wild, underscoring the urgency of immediate updates.

Key Takeaways

• Actively Exploited Zero-Day (CVE-2024-49138): This EoP vulnerability affects Windows Common Log File System Driver. Attackers can potentially gain full system rights, posing a serious threat if left unpatched.
• 30 Critical Remote Code Execution Vulnerabilities: Many RCE flaws impact Windows Server versions and other key components, allowing attackers to run malicious code remotely. Prioritizing these patches can help prevent serious breaches and data theft.
• 28 Elevation of Privilege Vulnerabilities: Attackers seek higher-level permissions to move deeper into networks and target sensitive resources. Securing these vulnerabilities helps maintain strong access controls.
• Additional Risks: Updates also address information disclosure, denial of service, and spoofing vulnerabilities across various Windows platforms and related services.

Affected Systems

These vulnerabilities span a range of products, including Windows 11, Windows 10, Windows Server 2008 through 2025, Microsoft Office components, Microsoft Message Queuing (MSMQ), Remote Desktop Services, and more. Organizations running mixed environments with older and newer Windows versions should verify patch availability and ensure everything is promptly updated.

Prioritize Immediate Actions

Review Access Controls: With multiple EoP vulnerabilities patched, confirm that privilege management and authentication policies are up to date and working correctly.

Patch the Zero-Day First: Secure systems against CVE-2024-49138 as soon as possible to prevent attackers from exploiting known weaknesses.

Address Critical RCE Flaws Quickly: Vulnerabilities like CVE-2024-49116 on Windows Server demand immediate attention. Any delays increase your risk of remote compromise.

Stay Protected with Recast Software 

We’re committed to helping you navigate these challenges. Our solutions, including Application Manager and Application Workspace, can streamline your app management processes, ensuring that your systems are up-to-date and secure. 

For a detailed list of all the updates released this month, you can visit Microsoft’s official December 2024 Security Updates page. 

Stay vigilant and keep your systems protected.