Microsoft working on Defender patch for RoguePlanet zero-day
ID: f05aa805-08ab-54ea-a727-fc6b1807c9ed
STIX ID: report--f05aa805-08ab-54ea-a727-fc6b1807c9ed
Feed Name: Bleeping Computer
Threat Score
Microsoft is investigating and preparing a patch for a Microsoft Defender zero-day called "RoguePlanet" (CVE-2026-50656) after a researcher publicized a proof-of-concept exploit that can elevate privileges to SYSTEM on fully patched Windows 10 and 11 via a race condition; Microsoft confirmed the issue and is working on an update while the disclosure fuels an ongoing dispute with the researcher.
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