CVE-2020-1374

Remote Desktop Client Remote Code Execution Vulnerability

CVE-2020-1374 is fixed in 40 products on 1 platform, first by KB4565511, released July 14, 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
0.0914
95th 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 14393.3808 KB4565511 Jul 14, 2020
Windows 10 Version 1607 for x64-based Systems 14393.3808 KB4565511 Jul 14, 2020
Windows 10 Version 1709 for 32-bit Systems 16299.1992 KB4565508 Jul 14, 2020
Windows 10 Version 1709 for ARM64-based Systems 16299.1992 KB4565508 Jul 14, 2020
Windows 10 Version 1709 for x64-based Systems 16299.1992 KB4565508 Jul 14, 2020
Windows 10 Version 1803 for 32-bit Systems 17134.1610 KB4565489 Jul 14, 2020
Windows 10 Version 1803 for ARM64-based Systems 17134.1610 KB4565489 Jul 14, 2020
Windows 10 Version 1803 for x64-based Systems 17134.1610 KB4565489 Jul 14, 2020
Windows 10 Version 1809 for 32-bit Systems 17763.1339 KB4558998 Jul 14, 2020
Windows 10 Version 1809 for ARM64-based Systems 17763.1339 KB4558998 Jul 14, 2020
Windows 10 Version 1809 for x64-based Systems 17763.1339 KB4558998 Jul 14, 2020
Windows 10 Version 1903 for 32-bit Systems KB4565483 Jul 14, 2020
Windows 10 Version 1903 for ARM64-based Systems KB4565483 Jul 14, 2020
Windows 10 Version 1903 for x64-based Systems KB4565483 Jul 14, 2020
Windows 10 Version 1909 for 32-bit Systems KB4565483 Jul 14, 2020
Windows 10 Version 1909 for ARM64-based Systems KB4565483 Jul 14, 2020
Windows 10 Version 1909 for x64-based Systems KB4565483 Jul 14, 2020
Windows 10 Version 2004 for 32-bit Systems 19041.388 KB4565503 Jul 14, 2020
Windows 10 Version 2004 for ARM64-based Systems 19041.388 KB4565503 Jul 14, 2020
Windows 10 Version 2004 for x64-based Systems 19041.388 KB4565503 Jul 14, 2020
Windows 10 for 32-bit Systems 10240.18638 KB4565513 Jul 14, 2020
Windows 10 for x64-based Systems 10240.18638 KB4565513 Jul 14, 2020
Windows 7 for 32-bit Systems Service Pack 1 KB4565524 Jul 14, 2020
Windows 7 for 32-bit Systems Service Pack 1 KB4565539 Jul 14, 2020
Windows 7 for x64-based Systems Service Pack 1 KB4565524 Jul 14, 2020
Windows 7 for x64-based Systems Service Pack 1 KB4565539 Jul 14, 2020
Windows 8.1 for 32-bit systems KB4565541 Jul 14, 2020
Windows 8.1 for 32-bit systems KB4565540 Jul 14, 2020
Windows 8.1 for x64-based systems KB4565541 Jul 14, 2020
Windows 8.1 for x64-based systems KB4565540 Jul 14, 2020
Windows RT 8.1 KB4565541 Jul 14, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4565524 Jul 14, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4565539 Jul 14, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4565524 Jul 14, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4565539 Jul 14, 2020
Windows Server 2012 KB4565535 Jul 14, 2020
Windows Server 2012 KB4565537 Jul 14, 2020
Windows Server 2012 (Server Core installation) KB4565535 Jul 14, 2020
Windows Server 2012 (Server Core installation) KB4565537 Jul 14, 2020
Windows Server 2012 R2 KB4565541 Jul 14, 2020
Windows Server 2012 R2 KB4565540 Jul 14, 2020
Windows Server 2012 R2 (Server Core installation) KB4565541 Jul 14, 2020
Windows Server 2012 R2 (Server Core installation) KB4565540 Jul 14, 2020
Windows Server 2016 14393.3808 KB4565511 Jul 14, 2020
Windows Server 2016 (Server Core installation) 14393.3808 KB4565511 Jul 14, 2020
Windows Server 2019 17763.1339 KB4558998 Jul 14, 2020
Windows Server 2019 (Server Core installation) 17763.1339 KB4558998 Jul 14, 2020
Windows Server, version 1903 (Server Core installation) KB4565483 Jul 14, 2020
Windows Server, version 1909 (Server Core installation) KB4565483 Jul 14, 2020
Windows Server, version 2004 (Server Core installation) 19041.388 KB4565503 Jul 14, 2020

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