APT28 exploited CVE-2026-21513, an MSHTML zero-day (CVSS 8.8), using malicious LNK files to bypass security controls and execute code.

The February update continues to refresh Secure Boot certificates. The update also fixes a number of feature and security glitches. Let's hope this month's update is less buggy than the one in January ...

Microsoft today released software updates to plug a whopping 172 security holes in its Windows operating systems, including at least two vulnerabilities that are already being actively exploited.

Attackers have not waited for Exploit Wednesday; the Microsoft Windows zero-day attacks have already started. Here’s what you need to know and do.

The company now says the issue is fully resolved in the Windows 11 KB5077181 update released during the February 2026 Patch Tuesday and later updates. "This issue is fully resolved in the Windows ...

Microsoft has released the KB5073724 extended security update to fix the Patch Tuesday security updates, including 3 zero-days and a fix for expiring Secure Boot certificates. Microsoft is no longer ...

Each month, the team at Readiness analyzes the latest Patch Tuesday updates from Microsoft and provides detailed, actionable testing guidance. The company’s Patch Tuesday release for February ...

This months Patch Tuesday is scheduled for May 8th and will bring us seven bulletins that address 23 vulnerabilities in Microsoft Office, Windows, Silverlight and the .NET framework which could allow ...

Microsoft Corp. is changing the way it documents its monthly security patches. Starting next month, the software giant will add a few more details to its Advanced Notification Alerts in order to give ...