Windows Remote Desktop Services
CVE-2025-21225 — Windows Remote Desktop Gateway (RD Gateway) Denial of Service Vulnerability
Executive Summary
None
Overview
5.9
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
None
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 5.2
EPSS Score
0.01497
probability of exploitation in the next 30 days
0.7086 percentile - updated 2026-06-21
View on FIRST.org
Affected Products
9 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows Server 2016 | 5049993 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2016 (Server Core installation) | 5049993 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2019 | 5050008 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2019 (Server Core installation) | 5050008 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2022 | 5049983 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2022 (Server Core installation) | 5049983 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2022, 23H2 Edition (Server Core installation) | 5049984 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2025 | 5050009 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2025 (Server Core installation) | 5050009 (Security Update) |
Important | Denial of Service | Yes |
Patches
5 patches
| Article | Type | Restart |
|---|---|---|
5049993 |
Security Update | Yes |
5050008 |
Security Update | Yes |
5049983 |
Security Update | Yes |
5049984 |
Security Update | Yes |
5050009 |
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
ʌ!ↄ⊥ojv with Kunlun Lab
References
On This Page