CVE-2026-50365 Remote Access Management service/API (RPC server) Elevation of Privilege Vulnerability

High 8.0 Published Updated

An attacker on an adjacent network can exploit improper authentication in the Windows RPC API to elevate privileges.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-50365?

CVE-2026-50365 is a high-severity authentication bypass vulnerability in Microsoft Windows 10 1607, published on 14 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Improper authentication in Windows RPC API allows an unauthorized attacker to elevate privileges over an adjacent network.

Weakness: CWE-287

Which versions are affected by CVE-2026-50365?

It affects 12 products.

Products include Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 24h2, Microsoft Windows 11 25h2 and 6 more.

How do I fix CVE-2026-50365?

No fix has been published for CVE-2026-50365 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-50365 being exploited?

There is no known exploitation of CVE-2026-50365 in the wild and no public exploit code.

All Microsoft Windows 10 1607 vulnerabilities

Sources

Also known as GHSA-wfq2-654c-4wx2.

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