CVE-2026-50656 Microsoft Defender Elevation of Privilege Vulnerability
An attacker can exploit a flaw in the Microsoft Malware Protection Engine to gain elevated privileges on the system.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-50656?
CVE-2026-50656 is a high-severity vulnerability in Microsoft Malware Protection Engine, published on 16 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "RoguePlanet ".
Weakness: CWE-59
Which versions are affected by CVE-2026-50656?
It affects 1 product.
Products include Microsoft Malware Protection Engine.
How do I fix CVE-2026-50656?
No fix has been published for CVE-2026-50656 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-50656 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-50656 exists.
Public exploit code: 4 proofs of concept on GitHub.
Other vulnerabilities in Microsoft Malware Protection Engine
Sources
Also known as GHSA-hgx9-224c-3p2x.