High-risk office security flaw: Microsoft issues emergency updates

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

Use Microsoft Office? Hackers can infect your PC with a malicious document - patch it ASAP

Use Microsoft Office? Hackers can infect your PC with a malicious document - patch it ASAP ...
The Hacker News

Microsoft Office Zero-Day (CVE-2026-21509) - Emergency Patch Issued for Active Exploitation

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

Microsoft Releases Patch for Office Zero Day Amid Evidence of Exploitation

The tech giant released a patch in a January 26 advisory for the flaw which has been summarized as an over-reliance on ...

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 ...
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.

Microsoft patches serious Office zero-day vulnerability already being exploited in attacks

Microsoft has finally addressed a serious zero-day vulnerability affecting multiple Office versions. However, not all users ...
Opinion

Microsoft rushes out emergency updates to fix a broken Windows Patch Tuesday

Microsoft rolled out the latest cumulative updates for Windows on January 13, 2026. Soon after installing the patches, users began reporting erratic behavior on both home ...