Microsoft has released its highly anticipated March 2025 Patch Tuesday update, tackling a staggering 57 security flaws. Among these, six vulnerabilities are deemed critical, while six have already fallen into the hands of threat actors. With active exploitation in the wild, organizations must waste no time in applying these patches to defend their networks from imminent threats.

Here’s a quick breakdown of the March 2025 Patch Tuesday vulnerabilities:

• 23 Remote Code Execution (RCE) Vulnerabilities
• 22 Elevation of Privilege (EoP) Vulnerabilities
• 4 Spoofing Vulnerabilities
• 4 Information Disclosure Vulnerability
• 3 Security Feature Bypass Vulnerabilities
• 1 Denial of Service (DoS) Vulnerability

From actively exploited zero-days to high-severity security gaps, this Patch Tuesday presents both immediate threats and critical fixes that demand swift attention. Let’s shine a light on the vulnerabilities making headlines this month.

Actively Exploited Zero-Day VulnerabilitiesCybercriminals are always on the lookout for unpatched systems, and the March 2025 Patch Tuesday update includes six vulnerabilities that are already being exploited in real-world attacks. Below, we break down these critical zero-days and their potential impact.

CVE-2025-24993 (CVSS 7.8) – NTFS Heap-Based Buffer OverflowThis flaw exists within the NTFS file system and affects Windows Server 2008 and later, including Windows 10 and 11. Although categorized as an RCE, exploitation requires local user interaction – an attacker must convince a victim to mount a malicious Virtual Hard Disk (VHD) image.

Once triggered, the vulnerability allows arbitrary code execution, making it a high-priority patching concern.