The gist: Microsoft releases patch for Rogueplanet exploit that enables privilege escalation in Defender.
Microsoft has released a security update for Defender that closes a critical privilege escalation vulnerability named Rogueplanet. The exploit allows attackers to gain far-reaching system rights via Windows.
The Rogueplanet exploit affects Microsoft Defender and allows attackers to escalate their privileges on local Windows systems. This enables them to access sensitive system resources and critical functions that are normally reserved for administrators only.
Microsoft has responded accordingly and provided an update for Defender that remedies the underlying vulnerability. CISOs should deploy this update promptly in their Windows environments to minimize the risk of exploitation by external or internal attackers.
Prioritizing this patch is essential, as privilege escalation vulnerabilities are frequently exploited as a second step in multi-stage attack scenarios – for example following initial access through phishing or software vulnerabilities. With the patch, Microsoft removes an important attack vector from the threat landscape.
Source: www.golem.de · Published July 9, 2026
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