Microsoft released out-of-band patches for an actively exploited Microsoft Office zero-day, CVE-2026-21509, a security ...

Overview On January 14, NSFOCUS CERT detected that Microsoft released the January Security Update patch, which fixed 112 security issues involving widely used products such as Windows, Microsoft ...

Microsoft has patched 112 vulnerabilities in January 2026, including CVE-2026-20805, a Desktop Window Manager zero-day that ...

Microsoft has released an emergency patch for CVE-2026-21509, a zero-day Office vulnerability under active exploitation that ...

Update, April 30, 2025: This story, originally published April 28, has been updated with further information regarding the hotpatching security update service for Windows Server 2025 users, as well as ...

Today is Microsoft's December 2025 Patch Tuesday, which fixes 57 flaws, including one actively exploited and two publicly disclosed zero-day vulnerabilities. This Patch Tuesday also addresses three ...

Microsoft has confirmed that the December 2025 security updates are breaking Message Queuing (MSMQ) functionality, affecting enterprise applications and Internet Information Services (IIS) websites.

Congratulations to the winners of the 2026 Microsoft Security Excellence Awards that recognize the innovative defenders who ...

The 130 CVEs (Common Vulnerabilities and Exposures) disclosed in Microsoft’s monthly release of security fixes includes a remote code execution flaw that ‘definitely’ should be prioritized for ...

Microsoft announced new or improved AI security agents at Ignite. Security agent functionality is surfaced within Microsoft's relevant management portal. The agents are free to all Copilot Security ...

This tool adds a highly trained virtual analyst to your security team in educational environments where IT personnel and resources are limited. Industries worldwide are trying to address the shortage ...