CVE-2018-0809 Memory corruption in Windows

High 7.0 Published Updated

An attacker can exploit improper memory object handling in the Windows kernel to elevate privileges on affected 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-2018-0809?

CVE-2018-0809 is a high-severity memory corruption vulnerability in Microsoft Windows 10, published on 15 Feb 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The Windows kernel in Windows 10, versions 1703 and 1709, and Windows Server, version 1709 allows an elevation of privilege vulnerability due to the way objects are handled in memory, aka "Windows Elevation of Privilege Vulnerability". This CVE is unique from CVE-2018-0742, CVE-2018-0756, CVE-2018-0820 and CVE-2018-0843.

Which versions are affected by CVE-2018-0809?

It affects 2 products.

Products include Microsoft Windows 10, Microsoft Windows Server 2016.

How do I fix CVE-2018-0809?

No fix has been published for CVE-2018-0809 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-0809 being exploited?

There is no known exploitation of CVE-2018-0809 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-xc49-q8vj-84mg.

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