CVE-2026-26183 Remote Access Management service/API (RPC server) Elevation of Privilege Vulnerability
An authorized local attacker can elevate privileges via improper access control in the Windows RPC API.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-26183?
CVE-2026-26183 is a high-severity vulnerability in Microsoft Windows Server 2012, published on 14 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper access control in Windows RPC API allows an authorized attacker to elevate privileges locally.
Weakness: CWE-284
Which versions are affected by CVE-2026-26183?
It affects 6 products.
Products include Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2022 23h2, Microsoft Windows Server 2025.
How do I fix CVE-2026-26183?
No fix has been published for CVE-2026-26183 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-26183 being exploited?
There is no known exploitation of CVE-2026-26183 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows Server 2012
- CVE-2025-59287 Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data
- CVE-2026-69595 Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
- CVE-2026-78445 Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
- CVE-2026-41089 Windows Netlogon Remote Code Execution Vulnerability
- CVE-2024-43639 Windows KDC Proxy Remote Code Execution Vulnerability
Sources
Also known as GHSA-w9q8-v7fh-ff6x.