Local privilege escalation via shared-resource race
Published Jul 14, 2026 · Updated Jul 14, 2026
Race condition in Microsoft Windows App Store on affected Windows releases allows local users to gain elevated privileges. Microsoft identifies concurrent access to a shared resource without proper synchronization but has not disclosed the resource or code path. Exploitation requires low-privilege local access and winning a timing race; success grants higher privileges on the host.
Summary
What happened
Race condition in Microsoft Windows App Store on affected Windows releases allows local users to gain elevated privileges. Microsoft identifies concurrent access to a shared resource without proper synchronization but has not disclosed the resource or code path. Exploitation requires low-privilege local access and winning a timing race; success grants higher privileges on the host.
The record
- CVE
- CVE-2026-50356
- Published
- Jul 14, 2026
- Updated
- Jul 14, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-362, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 14, 2026CVE publishedPublication date reported by the CVE source.
- Jul 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 <10.0.17763.9020
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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