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date: "2026-07-09T05:42:49+00:00"
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# Microsoft patches RoguePlanet Defender zero-day vulnerability

**Source:** Unknown  
**Published:** July 9, 2026  
**Original:** https://www.bleepingcomputer.com/news/microsoft/microsoft-patches-rogueplanet-defender-zero-day-vulnerability/  

## On this page

- [Overview](#overview)

<a id="overview"></a>

## Overview

Microsoft has released a security patch to address a Defender zero-day vulnerability known as "RoguePlanet," disclosed after the June 2026 Patch Tuesday. [...]

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