Microsoft recently published a security advisory warning of a newly discovered zero-day vulnerability in Office applications.

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

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

Microsoft forced to issue an emergency patch to fix an Office zero-day being actively exploited.

Microsoft released an emergency Office patch to fix an actively exploited zero-day flaw that lets attackers bypass security ...

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

Russian-state hackers wasted no time exploiting a critical Microsoft Office vulnerability that allowed them to compromise the ...

A hole in Microsoft Office is being exploited by bad actors, including Russian hackers targeting Ukraine's government.