Overview

• Microsoft's May 2025 Patch Tuesday update includes fixes for five zero-day vulnerabilities actively exploited before patches were available.
• The vulnerabilities, identified as CVE-2025-30397, CVE-2025-30400, CVE-2025-32701, CVE-2025-32706, and CVE-2025-32709, allow remote code execution or privilege escalation to administrator levels.
• These flaws impact Windows 10, Windows 11, and Windows Server versions released since 2019, with CVSS severity scores ranging from 7.5 to 7.8.
• Security experts emphasize the critical importance of applying these patches immediately to mitigate exploitation risks.
• The recurring pattern of attackers exploiting vulnerabilities before patches highlights the challenges of timely security updates in the face of escalating cyber threats.