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

Private Bulletin draft created from an RSS preview article.

EddieRod Bulletin Updated June 18, 2026 · 1 min read Based on source reporting for The Hacker News Read original →

Sources

Original source

Open the reporting this Bulletin is based on.

1 source

The Hacker News · thehackernews.com Microsoft Confirms RoguePlanet Defender Zero-Day, Says Patch is in Development Read source

More context

Microsoft has formally disclosed that it's working to release a patch to address a Defender zero-day codenamed RoguePlanet. The vulnerability has now…