Hackers Actively Scanning for TCP Port 8530/8531 Linked to WSUS Vulnerability CVE-2025-59287

Cybersecurity researchers and firewall monitoring services have detected a dramatic surge in reconnaissance activity targeting Windows Server Update Services (WSUS) infrastructure. Network sensors collected from security organizations, including data from Shadowserver, show a significant increase in scans directed at TCP ports 8530 and 8531 over the past week. While some scanning activity appears connected to […]

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