Nightmare-Eclipse Drops Yet Another Microsoft Exploit, RoguePlanet

A researcher calling themselves "Nightmare-Eclipse" released a proof-of-concept exploit (RoguePlanet) for a Windows Defender zero-day that leverages a race condition to potentially spawn SYSTEM-level command shells. The report places this disclosure in the context of a multi-month feud with Microsoft involving several previous PoC releases, notes Microsoft’s public condemnation and threat of legal action, and warns that such public PoCs increase risk to customers and may be exploited in the wild.