CVE-2026-50656

Name: CVE-2026-50656
Creator: NVD / NIST
Published: 2026-06-16T19:16:59.683+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7/10EPSS 3.39%

Last modified Jun 17, 2026

CVE-2026-50656 is a high-severity vulnerability rated 7/10 on the CVSS scale. Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "RoguePlanet ". We are working to provide a high quality security update that addresses this vulnerability. EPSS estimates a 3.39% chance of exploitation in the next 30 days.

Description

Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "RoguePlanet ". We are working to provide a high quality security update that addresses this vulnerability. We will provide information in this CVE when the update is available.

Metrics

CVSS 3.1

7/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

3.39%

87.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-59

Affected Software

Vendor	Product	Versions
Microsoft	Malware Protection Engine	All versions

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50656Vendor Advisory
https://github.com/MSNightmare/RoguePlanetProduct

Timeline

Published: Jun 16, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-50656?

How severe is CVE-2026-50656?

CVE-2026-50656 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 3.39% probability of exploitation in the next 30 days.

How do I fix CVE-2026-50656?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-50656?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST