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.
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 ...

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 ...
Forbes

‘Users Must Choose’—Microsoft Confirms New Windows Security Feature

Windows security updates tend to conjure thoughts of operating system vulnerabilities, including zero-days, being patched or even unexpected failures with serious consequences. This security update, ...
The Register on MSN

Office zero-day exploited in the wild forces Microsoft OOB patch

Another actively abused Office bug, another emergency patch – Office 2016 and 2019 users are left with registry tweaks ...