CVE-2019-1045 Windows Network File System Elevation of Privilege Vulnerability

High 7.8 Published Updated

A local attacker can execute code with elevated permissions by exploiting a memory handling flaw in the Windows Network File 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-2019-1045?

CVE-2019-1045 is a high-severity memory corruption vulnerability in Microsoft Windows 10, published on 12 Jun 2019. 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 the way that the Windows Network File System (NFS) handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions. To exploit the vulnerability, a locally authenticated attacker could run a specially crafted application. The security update addresses the vulnerability by ensuring the Windows NFS properly handles objects in memory.

Which versions are affected by CVE-2019-1045?

It affects 6 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.

How do I fix CVE-2019-1045?

No fix has been published for CVE-2019-1045 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-2019-1045 being exploited?

There is no known exploitation of CVE-2019-1045 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-j7hc-25j6-5f9v.

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