CVE-2018-8399 Privilege escalation in Windows 10

High 7.0 Published Updated

Attackers can exploit a Win32k memory handling flaw in Windows to elevate privileges to system level.

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-2018-8399?

CVE-2018-8399 is a high-severity vulnerability in Microsoft Windows 10, published on 15 Aug 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka "Win32k Elevation of Privilege Vulnerability." This affects Windows 10 Servers, Windows 10. This CVE ID is unique from CVE-2018-8404.

Weakness: CWE-404

Which versions are affected by CVE-2018-8399?

It affects 2 products.

Products include Microsoft Windows 10, Microsoft Windows Server.

How do I fix CVE-2018-8399?

No fix has been published for CVE-2018-8399 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-8399 being exploited?

There is no known exploitation of CVE-2018-8399 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-486m-xpj8-rrcf.

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