[CVE-2026-50656] Vulnerability Intelligence & Research

CVE-2026-50656 [High]

Curated 1 security research writeups, vulnerability advisories and exploitation analyses for CVE-2026-50656.

Vendor

Microsoft

Product

Microsoft Malware Protection Engine / Microsoft Defender

Affected versions

Microsoft Malware Protection Engine versions before 1.1.26060.3008; repository reports Windows 11 25H2 Canary and Windows Server 2025 testing, with Windows 10 vulnerable but unsupported by this PoC

CVSS

7.8

Coverage Span

2026-08-11

Reports

1 related reports

Associated Reports & Timeline

CVE-2026-50656 PoC: Microsoft Defender RoguePlanet elevation-of-privilege patch bypass

ShieldBreak, a public PoC for CVE-2026-50656, claims a full bypass of Microsoft's RoguePlanet patch—an elevation-of-privilege flaw in the Malware Protection Engine—on Windows 11 25H2 and Server 2025.

Why it matters: The repository publishes a patch-bypass implementation for a Defender elevation-of-privilege flaw, increasing practical risk to affected endpoints. Administrators should update the Malware Protection Engine to a fixed version and validate the PoC only in an explicitly authorized isolated environment; public availability does not by itself confirm exploitation in the wild.