Microsoft patches actively exploited Office zero-day vulnerability

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

New Microsoft Office zero-day under active attack, patch now

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

Microsoft Confirms Active Office Zero-Day Exploit, Deploys Emergency Fix

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

Microsoft Rushes Emergency Patch for Office Zero-Day

To exploit the vulnerability, an attacker would need either system access or be able to convince a user to open a malicious ...
SecurityWeek

Microsoft Patches Office Zero-Day Likely Exploited in Targeted Attacks

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

Fixes released for a serious Microsoft Office zero-day flaw

Microsoft is warning admins of an Office security bypass zero day vulnerability that can be triggered simply by a user ...
New Orleans City Business

Microsoft issues emergency fix for SharePoint flaw

Microsoft has issued an emergency fix to close off a vulnerability in Microsoft’s SharePoint software that hackers have exploited to carry out widespread attacks on businesses and at least some ...