Local privilege escalation via missing function authentication
Published Aug 11, 2026 · Updated Aug 25, 2026
Missing authentication in Microsoft Windows Remote Desktop Services allows local users with an account to elevate privileges. Microsoft has not disclosed which Remote Desktop Services critical function omits authentication or how a local account reaches it. Exploitation requires local access and low privileges, requires no user interaction, and can compromise confidentiality, integrity, and availability at the elevated privilege level.
Summary
What happened
Missing authentication in Microsoft Windows Remote Desktop Services allows local users with an account to elevate privileges. Microsoft has not disclosed which Remote Desktop Services critical function omits authentication or how a local account reaches it. Exploitation requires local access and low privileges, requires no user interaction, and can compromise confidentiality, integrity, and availability at the elevated privilege level.
The record
- CVE
- CVE-2026-61356
- Published
- Aug 11, 2026
- Updated
- Aug 25, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-306, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 11, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.17763.0 <10.0.17763.9121
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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