New Windows Zero-Day Exploit ‘RoguePlanet’ Released

Exploiting a race condition in Microsoft Defender, the exploit leads to local privilege escalation to SYSTEM. The post New Windows Zero-Day Exploit ‘RoguePlanet’ Released appeared first on SecurityWeek .

SecurityWeek reports on a new Windows zero-day exploit, "RoguePlanet," which abuses a race condition in Microsoft Defender to achieve local privilege escalation to SYSTEM on fully patched Windows 10 and 11 systems.[1][3] Multiple researchers have reproduced the proof-of-concept, confirming reliable elevation from standard user to SYSTEM in some environments, while Microsoft has acknowledged and is investigating the issue.[1][3] From a CyberSE.AI perspective, any endpoint zero-day in a widely deployed security component like Defender represents an AI-adjacent supply-chain and integrity risk for organizations whose AI agents or data pipelines run on Windows hosts, since compromise of the underlying OS can undermine model integrity, training data confidentiality, and agent behavior controls. Organizations should treat this as a high-priority hardening and monitoring issue for all Windows systems that participate in AI workloads, incorporating it into SBOM-driven asset inventories and broader AI security readiness efforts.