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

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

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

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

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

Another actively abused Office bug, another emergency patch – Office 2016 and 2019 users are left with registry tweaks instead of fixes. Updated Microsoft has issued an emergency Office patch after ...

First Patch Tuesday of 2026 goes big Microsoft and Uncle Sam have warned that a Windows bug disclosed today is already under attack.… The flaw, tracked as CVE-2026-20805 and discovered by Microsoft's ...

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. Update, May 15, 2025: This story, originally published May 14, ...

Today is Microsoft's November 2025 Patch Tuesday, which includes security updates for 63 flaws, including one actively exploited zero-day vulnerability. This Patch Tuesday also addresses four ...