Microsoft Working on Patch for ‘RoguePlanet’ Zero-Day

The public PoC code exploits a race condition in Microsoft Defender to spawn a command prompt with System privileges. The post Microsoft Working on Patch for ‘RoguePlanet’ Zero-Day appeared first on SecurityWeek .

SecurityWeek reports on 'RoguePlanet', a public proof‑of‑concept exploit abusing a race condition in Microsoft Defender to spawn a command prompt with SYSTEM privileges on fully patched Windows 10/11 systems, with Microsoft acknowledging and working on a fix.[4][5] This is a local privilege escalation issue in a default, core security component, not an AI model bug, but it highlights how weaknesses in endpoint protection tooling can be weaponized by adversaries.[2][3] From a CyberSE.AI perspective, this type of zero‑day in a widely deployed security product is an AI supply‑chain concern: any AI agent or automation that relies on the underlying Windows host and Defender for isolation, malware scanning, or policy enforcement inherits this exposure. Organizations should inventory dependencies on Microsoft Defender in AI stacks, incorporate it into SBOM and third‑party risk processes, and use readiness assessments to ensure that AI workloads and agents are sandboxed so that a single local privilege escalation in the host security layer does not lead to full compromise of AI systems and protected data.