An emergency update from Microsoft fixed a critical vulnerability in WSUS but inadvertently disabled hotpatch enrollment for some Windows Server 2025 devices. A subsequent update was released to correct this issue without disrupting hotpatch functionality. Administrators need to manage their updates carefully to avoid losing hotpatch support.

A critical flaw in Microsoft's Windows Server Update Services (WSUS) has been exploited in the wild, with reports indicating that the vulnerability allows attackers to bypass security measures and execute arbitrary code. Despite the availability of patches, many systems remain unprotected due to insufficient updates, highlighting the urgency for organizations to address this issue promptly.