What is CVE-2026-50656?

CVE-2026-50656 is a high-severity vulnerability in Microsoft Malware_protection_engine, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2026-06-16.

How severe is CVE-2026-50656?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Microsoft Malware_protection_engine

CVE-2026-50656

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…

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Microsoft Malware_protection_engine
Microsoft Malware Protection Engine

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

secure@microsoft.com (vendor-advisory, patch, Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (Product)

Frequently asked questions

What is CVE-2026-50656?: CVE-2026-50656 is a high-severity vulnerability in Microsoft Malware_protection_engine, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2026-06-16.
How severe is CVE-2026-50656?: High severity. CVSS v3 base score is 7.8 out of 10.