CVE-2020-1244 Denial of service in Windows

High 7.1 Published Updated

An attacker can cause a denial of service in the Connected User Experiences and Telemetry Service by improperly handling file operations.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2020-1244?

CVE-2020-1244 is a high-severity denial of service vulnerability in Microsoft Windows 10, published on 9 Jun 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A denial of service vulnerability exists when Connected User Experiences and Telemetry Service improperly handles file operations, aka 'Connected User Experiences and Telemetry Service Denial of Service Vulnerability'. This CVE ID is unique from CVE-2020-1120.

Which versions are affected by CVE-2020-1244?

It affects 3 products.

Products include Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019.

How do I fix CVE-2020-1244?

No fix has been published for CVE-2020-1244 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2020-1244 being exploited?

There is no known exploitation of CVE-2020-1244 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-952w-jx2h-f8q6.

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