CVE tracker / CVE-2025-26677
CVE-2025-26677
CVE-2025-26677 is the Windows Remote Desktop Gateway (RD Gateway) Denial of Service Vulnerability. Microsoft rates it Important, CVSS 7.5. It is not in CISA's Known Exploited Vulnerabilities catalog. Published May 13, 2025.
Risk summary
Microsoft describes it: “Uncontrolled resource consumption in Remote Desktop Gateway Service allows an unauthorized attacker to deny service over a network.”
How to fix it
Microsoft lists 9 affected products and the update that fixes each:
- KB5058383 · fixed build 10.0.14393.8066
Windows Server 2016 (Server Core installation), Windows Server 2016 - KB5058384 · fixed build 10.0.25398.1611
Windows Server 2022, 23H2 Edition (Server Core installation) - KB5058385 · fixed build 10.0.20348.3692
Windows Server 2022 (Server Core installation), Windows Server 2022 - KB5058392 · fixed build 10.0.17763.7314
Windows Server 2019 (Server Core installation), Windows Server 2019 - KB5058411 · fixed build 10.0.26100.4061
Windows Server 2025, Windows Server 2025 (Server Core installation)
What Microsoft changed
- May 13, 2025: Information published.
Details
- Weakness
- CWE-400: Uncontrolled Resource Consumption
- Publicly disclosed (Microsoft)
- No
- Exploited (Microsoft)
- No
- Known exploited (CISA KEV)
- Not listed
- Published
- May 13, 2025
- Last revised
- May 13, 2025
Get told when this changes
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References
From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.