Critical Flaw in Microsoft Products (CVE-2025-71081) Enables Remote System Compromise

A severe security vulnerability tracked as CVE-2025-71081 exposes Windows systems to remote attacks. Successful exploitation grants attackers SYSTEM-level privileges. This enables complete compromise of affected devices.

Affected products include Windows 10 versions 21H2 through 23H2 and Windows Server 2022. Earlier versions may also be vulnerable if unpatched. The flaw resides in the Windows Kernel component. It stems from improper memory handling during object operations.

The vulnerability carries a CVSS v3.1 severity score of 9.8 (Critical). Attack vectors require no user interaction. Malicious actors could trigger the flaw through network packets or specially crafted files. Exploitation enables arbitrary code execution at the highest privilege level.

Microsoft released patches on May 14, 2025. Apply updates immediately via Windows Update or the Microsoft Update Catalog. Enterprise administrators should prioritize deployment to domain controllers and internet-facing systems. Enable automatic updates where feasible.

Until patching completes, restrict SMBv3 traffic at network boundaries. Disable unnecessary file-sharing services. Monitor authentication logs for unusual activity. Microsoft confirms no active exploitation detected prior to patching.

For technical details and mitigation guidance, reference the Microsoft Security Update Guide. The CVE-2025-71081 advisory provides registry key modifications for temporary workarounds.