Microsoft March Update Fixes 57 Vulnerabilities, Including Critical RCE Flaws

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In March, Microsoft rolled out its latest security update, addressing a total of 57 vulnerabilities across its array of products. This comprehensive patch includes fixes for six critical flaws, with significant attention given to two specific Remote Code Execution (RCE) vulnerabilities in Windows Remote Desktop Services (RDS). Known as CVE-2025-24035 and CVE-2025-24045, these vulnerabilities are alarming due to their potential to allow unauthorized execution of code over a network. These issues carry a high CVSSv3 score of 8.1, underscoring the severe risk they pose to system confidentiality, integrity, and availability.

Critical RCE Vulnerabilities and Their Implications

CVE-2025-24035 is particularly concerning because it stems from sensitive data being stored incorrectly in memory that is not properly secured. This vulnerability could be exploited by an attacker to gain unauthorized access to sensitive information, thereby compromising system security. On the other hand, CVE-2025-24045 involves a more intricate exploitation process, necessitating the attacker to successfully navigate a race condition. While the complexity of the attack might seem a deterrent, Microsoft’s assessment of these vulnerabilities as “Exploitation More Likely” highlights the necessity for immediate action.

Both vulnerabilities affect a range of Windows server and desktop versions, making the scope of the threat quite extensive. The patches issued in the March update are designed to mitigate these risks, and Microsoft has urged users and organizations to apply these updates without delay. The importance of this prompt action cannot be overstated, given the potential for these flaws to be exploited in a manner that could severely disrupt organizational operations and data security.

Additional Significant Flaws and Actively Exploited Vulnerabilities

Beyond the critical RDS vulnerabilities, the March update also addresses several other notable security issues. Among these is CVE-2025-26645, another remote code execution vulnerability found within the Remote Desktop Client. Additionally, the update fixes CVE-2025-24057, a heap-based buffer overflow in Microsoft Office, and CVE-2025-24064, a use-after-free flaw in the Windows DNS Server. Another critical patch addresses CVE-2025-24084, a remote code execution vulnerability within the Windows Subsystem for Linux kernel.

Moreover, Microsoft has patched six vulnerabilities that were currently being exploited in active attacks. These actively exploited vulnerabilities encompass issues in the Microsoft Management Console, Windows NTFS, and Windows Fast FAT system drivers. The rapid identification and resolution of these vulnerabilities underscore the importance of Microsoft’s ongoing vigilance regarding cybersecurity threats. Organizations and individual users alike are reminded of the paramount importance of keeping systems updated to prevent exploitation of newly identified vulnerabilities.

The Importance of Timely Patching

Ensuring robust protection against such vulnerabilities is essential for maintaining the safety and security of user data and system operations. The release of this patch demonstrates Microsoft’s commitment to addressing critical security issues promptly and effectively, safeguarding their users from potential cyber threats.

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