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Vulnerability record · CVE-2020-16863 · published 16 October 2020

CVE-2020-16863: Microsoft windows 7 vulnerability

Microsoft · Windows 7

<p>A denial of service vulnerability exists in Windows Remote Desktop Service 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 Remote Desktop Service on the target system to stop responding.</p> <p>To exploit this vulnerability, an attacker would need to run a specially crafted application against a server which provides Remote Desktop Service.</p> <p>The update addresses the vulnerability by correcting how Remote Desktop Service handles connection requests.</p>

7.5 CVSS 3.1 High EPSS 5.8% · top 7.1%
7.5CVSS 3.1 base score, v2 7.8
5.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

<p>A denial of service vulnerability exists in Windows Remote Desktop Service 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 Remote Desktop Service on the target system to stop responding.</p> <p>To exploit this vulnerability, an attacker would need to run a specially crafted application against a server which provides Remote Desktop Service.</p> <p>The update addresses the vulnerability by correcting how Remote Desktop Service handles connection requests.</p>

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16863 PatchVendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16863 PatchVendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-16863), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.