Windows Critical RCE Flaws Discovered by AI System | MSSP Advisory

Microsoft's new AI system MDASH discovered 16 Windows vulnerabilities including four critical remote code execution flaws that were patched in the May 12 Patch Tuesday. The critical bugs hit core Windows components across enterprise environments, with CVE-2026-33827 being a remote unauthenticated use-after-free flaw in the Windows IPv4 stack exploitable through crafted packets. The AI platform enters private preview next month for enterprise customers.

Your RMM agents and PSA servers running on Windows are exposed to four critical RCEs that allow remote code execution without authentication. Client environments running unpatched Windows systems face immediate compromise risk through network-level attacks that bypass perimeter defenses. The May patches are already available but deployment across your stack and client base determines your exposure window.

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