CVE-2021-34456 Windows Remote Access Connection Manager Elevation of Privilege Vulnerability

High 7.8 Published Updated

An attacker can exploit a flaw in Windows Remote Access Connection Manager to gain elevated privileges on the system.

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-2021-34456?

CVE-2021-34456 is a high-severity vulnerability in Microsoft Windows 10, published on 16 Jul 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Windows Remote Access Connection Manager Elevation of Privilege Vulnerability

Weakness: CWE-269

Which versions are affected by CVE-2021-34456?

It affects 8 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.

How do I fix CVE-2021-34456?

No fix has been published for CVE-2021-34456 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-34456 being exploited?

There is no known exploitation of CVE-2021-34456 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-w975-jcxc-99vr.

Is CVE-2021-34456 in your software?

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

Check your SBOMs for free