Microsoft rushed an emergency Patch Tuesday fix after a new Office zero-day began spreading in active attacks. CISA warns ...

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

Microsoft released patches for CVE-2026-21509, a new Office zero-day vulnerability that can be exploited to bypass security features.

A joint investigation by the Microsoft Threat Intelligence Center and Microsoft Security Response Center found that a zero-day vulnerability in the Windows Common Log File System had been exploited by ...

Microsoft has released emergency security updates to patch a high-severity Office zero-day vulnerability exploited in attacks ...

First Patch Tuesday of 2026 goes big Microsoft and Uncle Sam have warned that a Windows bug disclosed today is already under attack.… The flaw, tracked as CVE-2026-20805 and discovered by Microsoft's ...

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. Update, May 15, 2025: This story, originally published May 14, ...

Today is Microsoft's November 2025 Patch Tuesday, which includes security updates for 63 flaws, including one actively exploited zero-day vulnerability. This Patch Tuesday also addresses four ...

Microsoft releases an urgent out-of-band update for a critical Office zero-day flaw already exploited in real-world attacks.