CVE-2019-1223

Windows Remote Desktop Protocol (RDP) Denial of Service Vulnerability

At a glance

Severity: HIGH 7.5
EPSS: EPSS 5.08 % · percentile 92 (2026-10-27)
State: PUBLISHED
Published: 2019-08-14
Updated: 2024-08-04
Assigner: microsoft
NVD status: Modified

Description

A denial of service vulnerability exists in Remote Desktop Protocol (RDP) 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 RDP 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 Remote Desktop Protocol (RDP) services. The update addresses the vulnerability by correcting how RDP handles connection requests.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C	microsoft
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · secure@microsoft.com (Secondary)
CVSS 2.0	MEDIUM 5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P	NVD · nvd@nist.gov (Primary)

European references

ENISA EUVD · EUVD-2019-9790
GCVE · GCVE-0-2019-1223

CERT-FR advisories

CERTFR-2019-AVI-553 — Multiples vulnérabilités dans les produits Schneider Electric · cert.ssi.gouv.fr
CERTFR-2019-AVI-397 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*

Affected products

Product	Versions
Microsoft · Windows 10 Version 1803	affected 10.0.0 < publication
Microsoft · Windows Server, version 1803 (Server Core Installation)	affected 10.0.0 < publication
Microsoft · Windows 10 Version 1809	affected 10.0.0 < publication
Microsoft · Windows Server 2019	affected 10.0.0 < publication
Microsoft · Windows Server 2019 (Server Core installation)	affected 10.0.0 < publication
Microsoft · Windows 10 Version 1903 for 32-bit Systems	affected 10.0.0 < publication
Microsoft · Windows 10 Version 1903 for x64-based Systems	affected 10.0.0 < publication
Microsoft · Windows 10 Version 1903 for ARM64-based Systems	affected 10.0.0 < publication
Microsoft · Windows Server, version 1903 (Server Core installation)	affected 10.0.0 < publication

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1223

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD