Windows RDP
CVE-2020-0612 — Windows Remote Desktop Gateway (RD Gateway) Denial of Service Vulnerability
Executive Summary
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.
Overview
7.5
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
N/A
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
Temporal Score: 6.7
EPSS Score
0.04553
probability of exploitation in the next 30 days
0.90366 percentile - updated 2026-06-20
View on FIRST.org
Affected Products
2 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows Server 2016 | 4534271 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2019 | 4534273 (Security Update) |
Important | Denial of Service | Yes |
Patches
2 patches
| Article | Type | Restart |
|---|---|---|
4534271 |
Security Update | Yes |
4534273 |
Security Update | Yes |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
Microsoft Platform Security Assurance & Vulnerability Research
References
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