CVE-2019-1222

Name: CVE-2019-1222
Creator: NVD / NIST
Published: 2019-08-14T21:15:18.61+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 7.59%

Last modified Jun 17, 2026

CVE-2019-1222 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A remote code execution vulnerability exists in Remote Desktop Services – formerly known as Terminal Services – when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. EPSS estimates a 7.59% chance of exploitation in the next 30 days.

Description

A remote code execution vulnerability exists in Remote Desktop Services – formerly known as Terminal Services – when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would need to send a specially crafted request to the target systems Remote Desktop Service via RDP. The update addresses the vulnerability by correcting how Remote Desktop Services handles connection requests.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

7.59%

93.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Microsoft	Windows 10	1803
Microsoft	Windows 10	1809
Microsoft	Windows 10	1903
Microsoft	Windows Server 2016	1803
Microsoft	Windows Server 2016	1903
Microsoft	Windows Server 2019	All versions

References

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190819-01-windows-enThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-187667.pdf
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1222Patch, Vendor Advisory
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190819-01-windows-enThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-187667.pdf
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1222Patch, Vendor Advisory

Timeline

Published: Aug 14, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-1222?

How severe is CVE-2019-1222?

CVE-2019-1222 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 7.59% probability of exploitation in the next 30 days.

How do I fix CVE-2019-1222?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-1222?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST