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.

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 ...
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 ...
Security Boulevard

Microsoft’s January Security Update of High-Risk Vulnerability Notice for Multiple Products

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 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 ...
Ars Technica

Office problems on Windows 10? Microsoft’s response will soon be “upgrade to 11.”

Microsoft’s advertised end-of-support date for Windows 10 is October 14, 2025. But in reality, the company will gradually wind down support for the enduring popular operating system over the next ...