Kernel-memory disclosure via mishandled CSRSS objects
Published May 21, 2020 · Updated Aug 19, 2026
Information disclosure in Microsoft Windows CSRSS allows local users to read kernel memory by running a crafted application. CSRSS improperly handles in-memory objects, allowing a user-mode process to receive kernel-memory contents; Microsoft has not disclosed the affected object type or operation. The attacker must first log on and execute the application locally, and the reported consequence is disclosure that can support further system compromise.
Summary
What happened
Information disclosure in Microsoft Windows CSRSS allows local users to read kernel memory by running a crafted application. CSRSS improperly handles in-memory objects, allowing a user-mode process to receive kernel-memory contents; Microsoft has not disclosed the affected object type or operation. The attacker must first log on and execute the application locally, and the reported consequence is disclosure that can support further system compromise.
The record
- CVE
- CVE-2020-1116
- Published
- May 21, 2020
- Updated
- Aug 19, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- Unavailable
- 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=10.0.10240.0 <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
No sourced classifications are available.
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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