CVE-2020-0734

Remote Desktop Client Remote Code Execution Vulnerability

CVE-2020-0734 is fixed in 37 products on 1 platform, first by KB4537764, released February 11, 2020. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent
CVSS
7.5
Critical
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.1653
97th percentile

<p>A remote code execution vulnerability exists in the Windows Remote Desktop Client when a user connects to a malicious server. An attacker who successfully exploited this vulnerability could execute arbitrary code on the computer of the connecting client. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>To exploit this vulnerability, an attacker would need to have control of a server and then convince a user to connect to it. An attacker would have no way of forcing a user to connect to the malicious server, they would need to trick the user into connecting via social engineering, DNS poisoning or using a Man in the Middle (MITM) technique. An attacker could also compromise a legitimate server, host malicious code on it, and wait for the user to connect.</p> <p>The update addresses the vulnerability by correcting how the Windows Remote Desktop Client handles connection requests.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Windows 10 Version 1607 for 32-bit Systems 14393.3504 KB4537764 Feb 11, 2020
Windows 10 Version 1607 for x64-based Systems 14393.3504 KB4537764 Feb 11, 2020
Windows 10 Version 1709 for 32-bit Systems 16299.1686 KB4537789 Feb 11, 2020
Windows 10 Version 1709 for ARM64-based Systems 16299.1686 KB4537789 Feb 11, 2020
Windows 10 Version 1709 for x64-based Systems 16299.1686 KB4537789 Feb 11, 2020
Windows 10 Version 1803 for 32-bit Systems 17134.1304 KB4537762 Feb 11, 2020
Windows 10 Version 1803 for ARM64-based Systems 17134.1304 KB4537762 Feb 11, 2020
Windows 10 Version 1803 for x64-based Systems 17134.1304 KB4537762 Feb 11, 2020
Windows 10 Version 1809 for 32-bit Systems 17763.1039 KB4532691 Feb 11, 2020
Windows 10 Version 1809 for ARM64-based Systems 17763.1039 KB4532691 Feb 11, 2020
Windows 10 Version 1809 for x64-based Systems 17763.1039 KB4532691 Feb 11, 2020
Windows 10 Version 1903 for 32-bit Systems KB4532693 Feb 11, 2020
Windows 10 Version 1903 for ARM64-based Systems KB4532693 Feb 11, 2020
Windows 10 Version 1903 for x64-based Systems KB4532693 Feb 11, 2020
Windows 10 Version 1909 for 32-bit Systems KB4532693 Feb 11, 2020
Windows 10 Version 1909 for ARM64-based Systems KB4532693 Feb 11, 2020
Windows 10 Version 1909 for x64-based Systems KB4532693 Feb 11, 2020
Windows 10 for 32-bit Systems 10240.18486 KB4537776 Feb 11, 2020
Windows 10 for x64-based Systems 10240.18486 KB4537776 Feb 11, 2020
Windows 7 for 32-bit Systems Service Pack 1 KB4537813 Feb 11, 2020
Windows 7 for 32-bit Systems Service Pack 1 KB4537820 Feb 11, 2020
Windows 7 for x64-based Systems Service Pack 1 KB4537813 Feb 11, 2020
Windows 7 for x64-based Systems Service Pack 1 KB4537820 Feb 11, 2020
Windows 8.1 for 32-bit systems KB4537803 Feb 11, 2020
Windows 8.1 for 32-bit systems KB4537821 Feb 11, 2020
Windows 8.1 for x64-based systems KB4537803 Feb 11, 2020
Windows 8.1 for x64-based systems KB4537821 Feb 11, 2020
Windows RT 8.1 KB4537821 Feb 11, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4537813 Feb 11, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4537820 Feb 11, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4537813 Feb 11, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4537820 Feb 11, 2020
Windows Server 2012 KB4537794 Feb 11, 2020
Windows Server 2012 KB4537814 Feb 11, 2020
Windows Server 2012 (Server Core installation) KB4537794 Feb 11, 2020
Windows Server 2012 (Server Core installation) KB4537814 Feb 11, 2020
Windows Server 2012 R2 KB4537803 Feb 11, 2020
Windows Server 2012 R2 KB4537821 Feb 11, 2020
Windows Server 2012 R2 (Server Core installation) KB4537803 Feb 11, 2020
Windows Server 2012 R2 (Server Core installation) KB4537821 Feb 11, 2020
Windows Server 2016 14393.3504 KB4537764 Feb 11, 2020
Windows Server 2016 (Server Core installation) 14393.3504 KB4537764 Feb 11, 2020
Windows Server 2019 17763.1039 KB4532691 Feb 11, 2020
Windows Server 2019 (Server Core installation) 17763.1039 KB4532691 Feb 11, 2020
Windows Server, version 1803 (Server Core Installation) 17134.1304 KB4537762 Feb 11, 2020
Windows Server, version 1903 (Server Core installation) KB4532693 Feb 11, 2020
Windows Server, version 1909 (Server Core installation) KB4532693 Feb 11, 2020

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