Description
A denial of service vulnerability exists in Windows Remote Desktop Gateway (RD Gateway) when an attacker connects to the target system using RDP and sends specially crafted requests. An attacker who successfully exploited this vulnerability could cause the RD Gateway service on the target system to stop responding. To exploit this vulnerability, an attacker would need to run a specially crafted application against a server which provides RD Gateway services. The update addresses the vulnerability by correcting how RD Gateway handles connection requests.
References (1)
Core 1
Core References
Patch, Vendor Advisory x_refsource_misc
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1466
Scores
CVSS v3
7.8
EPSS
0.0383
EPSS Percentile
89.0%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
Status
published
Products (4)
microsoft/windows_server_2012
microsoft/windows_server_2012
r2
microsoft/windows_server_2016
microsoft/windows_server_2019
Published
Aug 17, 2020
Tracked Since
Feb 18, 2026