CVE-2020-1518 Windows File Server Resource Management Service Elevation of Privilege Vulnerability

High 7.8 Published Updated

An attacker with local access can exploit a memory handling flaw in the Windows File Server Resource Management Service to elevate privileges.

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-2020-1518?

CVE-2020-1518 is a high-severity memory corruption vulnerability in Microsoft Windows 10, published on 17 Aug 2020. 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 when the Windows File Server Resource Management Service improperly handles memory. To exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges. The security update addresses the vulnerability by correcting how the Windows File Server Resource Management Service handles memory.

Which versions are affected by CVE-2020-1518?

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-2020-1518?

No fix has been published for CVE-2020-1518 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-2020-1518 being exploited?

There is no known exploitation of CVE-2020-1518 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-qgjq-wxv3-5p46.

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