Microsoft Releases Windows 10 KB5087544 Extended Security Update
Microsoft has rolled out the Windows 10 KB5087544 extended security update. BleepingComputer reports this update addresses vulnerabilities from May 2026 Patch Tuesday. It also includes a fix for issues related to new Remote Desktop warnings.
This update is critical for organizations still running Windows 10, especially those relying on extended security updates. Neglecting these patches leaves significant attack surface open. Attackers are relentless; they don’t care about your upgrade roadmap. They care about unpatched systems they can exploit.
SCW advises immediate deployment of KB5087544. The inclusion of a fix for Remote Desktop warnings suggests ongoing attention to common remote access vectors, which are frequently abused by threat actors for initial access and lateral movement. Don’t let your RDP endpoints become an easy entry point.
What This Means For You
- If your organization has Windows 10 systems, especially those under extended security update programs, you must deploy KB5087544 immediately. Prioritize this patch. Failing to do so leaves your endpoints vulnerable to known, exploitable flaws and could expose your network to initial access via insecure RDP configurations.
Related ATT&CK Techniques
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| KB5087544 | Patch | Windows 10 KB5087544 extended security update |
| KB5087544 | Vulnerability Fix | May 2026 Patch Tuesday vulnerabilities |
| KB5087544 | Remote Desktop Issue | Remote Desktop warnings |
Written by SCW Vulnerability Desk
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