Elevated code execution via improper memory handling
Published May 21, 2020 · Updated Aug 19, 2026
Elevation of privilege in Microsoft Windows State Repository Service allows local users to execute arbitrary code in an elevated context. The service improperly handles objects in memory, but Microsoft has not disclosed the object type, affected operation, or precise corruption primitive. Exploitation requires low-privileged local access and execution of a specially crafted application on the affected system.
Summary
What happened
Elevation of privilege in Microsoft Windows State Repository Service allows local users to execute arbitrary code in an elevated context. The service improperly handles objects in memory, but Microsoft has not disclosed the object type, affected operation, or precise corruption primitive. Exploitation requires low-privileged local access and execution of a specially crafted application on the affected system.
The record
- CVE
- CVE-2020-1191
- Published
- May 21, 2020
- Updated
- Aug 19, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 21, 2020CVE publishedPublication date reported by the CVE source.
- Aug 19, 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?
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- Affected versionversion=10.0.17763.0 <publication
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.
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Technologies
Your stack
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Your stack
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