CVE-2019-0787

Remote Desktop Client Remote Code Execution Vulnerability

CVE-2019-0787 is fixed in 23 products on 1 platform, first by KB4516044, released September 10, 2019. 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
0.1248
96th 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 14393.3204 KB4516044 Sep 10, 2019
Windows 10 Version 1607 for x64-based Systems 14393.3204 KB4516044 Sep 10, 2019
Windows 10 Version 1703 for 32-bit Systems 15063.2045 KB4516068 Sep 10, 2019
Windows 10 Version 1703 for x64-based Systems 15063.2045 KB4516068 Sep 10, 2019
Windows 10 Version 1709 for 32-bit Systems 16299.1387 KB4516066 Sep 10, 2019
Windows 10 Version 1709 for ARM64-based Systems 16299.1387 KB4516066 Sep 10, 2019
Windows 10 Version 1709 for x64-based Systems 16299.1387 KB4516066 Sep 10, 2019
Windows 10 Version 1803 for 32-bit Systems 17134.1006 KB4516058 Sep 10, 2019
Windows 10 Version 1803 for ARM64-based Systems 17134.1006 KB4516058 Sep 10, 2019
Windows 10 Version 1803 for x64-based Systems 17134.1006 KB4516058 Sep 10, 2019
Windows 10 Version 1809 for 32-bit Systems 17763.737 KB4512578 Sep 10, 2019
Windows 10 Version 1809 for ARM64-based Systems 17763.737 KB4512578 Sep 10, 2019
Windows 10 Version 1809 for x64-based Systems 17763.737 KB4512578 Sep 10, 2019
Windows 10 Version 1903 for 32-bit Systems 18362.356 KB4515384 Sep 10, 2019
Windows 10 Version 1903 for ARM64-based Systems 18362.356 KB4515384 Sep 10, 2019
Windows 10 Version 1903 for x64-based Systems 18362.356 KB4515384 Sep 10, 2019
Windows 10 for 32-bit Systems 10240.18333 KB4516070 Sep 10, 2019
Windows 10 for x64-based Systems 10240.18333 KB4516070 Sep 10, 2019
Windows 7 for 32-bit Systems Service Pack 1 KB4516065 Sep 10, 2019
Windows 7 for 32-bit Systems Service Pack 1 KB4516033 Sep 10, 2019
Windows 7 for x64-based Systems Service Pack 1 KB4516065 Sep 10, 2019
Windows 7 for x64-based Systems Service Pack 1 KB4516033 Sep 10, 2019
Windows 8.1 for 32-bit systems KB4516067 Sep 10, 2019
Windows 8.1 for 32-bit systems KB4516064 Sep 10, 2019
Windows 8.1 for x64-based systems KB4516067 Sep 10, 2019
Windows 8.1 for x64-based systems KB4516064 Sep 10, 2019
Windows RT 8.1 KB4516067 Sep 10, 2019