CVE-2020-1036 Code injection in Windows Server

Critical 9.0 Published Updated

An authenticated guest user can execute arbitrary code on the Hyper-V host via RemoteFX vGPU input validation flaws.

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-2020-1036?

CVE-2020-1036 is a critical code injection vulnerability in Microsoft Windows Server 2008, published on 14 Jul 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A remote code execution vulnerability exists when Hyper-V RemoteFX vGPU on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1032, CVE-2020-1040, CVE-2020-1041, CVE-2020-1042, CVE-2020-1043.

Weakness: CWE-20

Which versions are affected by CVE-2020-1036?

It affects 3 products.

Products include Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016.

How do I fix CVE-2020-1036?

No fix has been published for CVE-2020-1036 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2020-1036 being exploited?

There is no known exploitation of CVE-2020-1036 in the wild and no public exploit code.

All Microsoft Windows Server 2008 vulnerabilities

Sources

Also known as GHSA-cwh6-w644-6v8q.

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