Local privilege escalation via mishandled file execution
Published May 21, 2020 · Updated Aug 19, 2026
Elevation of privilege in Microsoft Windows Error Reporting allows local users to gain elevated access by running a crafted application. WER mishandles and executes files supplied through that application; Microsoft has not published the affected function or precise validation failure. Exploitation requires existing local access, and success grants greater access to sensitive information and system functionality.
Summary
What happened
Elevation of privilege in Microsoft Windows Error Reporting allows local users to gain elevated access by running a crafted application. WER mishandles and executes files supplied through that application; Microsoft has not published the affected function or precise validation failure. Exploitation requires existing local access, and success grants greater access to sensitive information and system functionality.
The record
- CVE
- CVE-2020-1088
- Published
- May 21, 2020
- Updated
- Aug 19, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- 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=10.0.10240.0 <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
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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