Critical WSUS Flaw Exploited: Chinese APTs Deploy ShadowPad Backdoor via CVE-2025-59287
Our intelligence team has uncovered a fresh escalation in state-sponsored cyber espionage targeting enterprise update infrastructure. A critical remote code execution (RCE) vulnerability in Microsoft Windows Server Update Services (WSUS), designated CVE-2025-59287, is now actively exploited by Chinese-linked advanced persistent threat ( APT) groups. These actors leverage the flaw to deploy ShadowPad, a modular backdoor long favored in espionage operations.