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

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

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

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

Varonis Threat Labs has published a report detailing a now patched security exploit discovered in Copilot that let attackers steal data with a single-click.

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

Microsoft releases an urgent out-of-band update for a critical Office zero-day flaw already exploited in real-world attacks.

Microsoft has patched 112 vulnerabilities in January 2026, including CVE-2026-20805, a Desktop Window Manager zero-day that ...

Microsoft has released Security Baseline v2512 for Microsoft 365 Apps with enhanced Excel and PowerPoint protections, blocking unsafe external links and legacy automation components.

Discover four key identity and access priorities for the new year to strengthen your organization's identity security ...