Local privilege escalation via untrusted pointer dereference
Published Apr 14, 2026 · Updated Apr 14, 2026
Privilege escalation in Microsoft Windows UPnP Device Host allows local users with existing access to obtain higher privileges. The component dereferences an untrusted pointer, but Microsoft has not disclosed the affected function, pointer source, or triggering input path. Existing local access is required; successful exploitation crosses a privilege boundary and gives the attacking process elevated Windows privileges.
Summary
What happened
Privilege escalation in Microsoft Windows UPnP Device Host allows local users with existing access to obtain higher privileges. The component dereferences an untrusted pointer, but Microsoft has not disclosed the affected function, pointer source, or triggering input path. Existing local access is required; successful exploitation crosses a privilege boundary and gives the attacking process elevated Windows privileges.
The record
- CVE
- CVE-2026-27920
- Published
- Apr 14, 2026
- Updated
- Apr 14, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-822, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 14, 2026CVE publishedPublication date reported by the CVE source.
- Apr 14, 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 <10.0.17763.8644
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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