CVE-2025-26679 RPC Endpoint Mapper Service Elevation of Privilege Vulnerability

High 7.8 Published Updated

An authorized local attacker can exploit a use-after-free flaw in the RPC Endpoint Mapper Service to elevate privileges on Windows systems.

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-2025-26679?

CVE-2025-26679 is a high-severity use after free vulnerability in Microsoft Windows 10 1507, published on 8 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Use after free in RPC Endpoint Mapper Service allows an authorized attacker to elevate privileges locally.

Weakness: CWE-416

Which versions are affected by CVE-2025-26679?

It affects 15 products.

Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 22h2 and 9 more.

How do I fix CVE-2025-26679?

No fix has been published for CVE-2025-26679 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2025-26679 being exploited?

There is no known exploitation of CVE-2025-26679 in the wild and no public exploit code.

All Microsoft Windows 10 1507 vulnerabilities

Sources

Also known as GHSA-4f3f-qmwc-952f.

Is CVE-2025-26679 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free