PT-2026-49756 · Microsoft · Malware Protection Engine

Published 2026-06-16 · Updated 2026-06-16 · CVE-2026-50656

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Microsoft Defender (affected versions not specified)

Description An elevation of privilege issue exists in the Microsoft Malware Protection Engine in Microsoft Defender, publicly referred to as RoguePlanet.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Link Following

Weakness Enumeration

CWE-59

Related Identifiers

CVE-2026-50656

Affected Products

Malware Protection Engine

References · 4

• 🔥 https://github.com/MSNightmare/RoguePlanet · Exploit
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50656 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-50656 · Security Note
• https://twitter.com/xaitax/status/2066781941655847329 · Twitter Post