Cyber Intelligence

Microsoft Confirms RoguePlanet Defender Zero-Day, Says Patch is in Development

Medium Severity Global
Date Occurred Jun 17, 2026 17:36 UTC
Event Type Cyber Intelligence
Source TheHackerNews
Recorded Jun 17, 2026
Full Description

Microsoft has formally disclosed that it's working to release a patch to address a Defender zero-day codenamed RoguePlanet. The vulnerability has now been assigned the CVE identifier CVE-2026-50656 (

Original Source
https://thehackernews.com/2026/06/microsoft-confirms-rogueplanet-defender_02022423645.html
Event Metadata
  • ID #9340
  • Type Cyber Intelligence
  • Region Global
  • Severity Medium
  • Indexed Jun 17, 2026
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