Local privilege escalation via buffer over-read
Published Aug 8, 2023 · Updated Aug 10, 2026
Buffer over-read in the Microsoft Windows Cloud Files Mini Filter Driver allows local users to elevate privileges on affected systems. Microsoft identifies the weakness class but has not disclosed the specific buffer, field, or driver operation that reads beyond its boundary. Exploitation requires existing low-privilege local access and can grant higher privileges without user interaction.
Summary
What happened
Buffer over-read in the Microsoft Windows Cloud Files Mini Filter Driver allows local users to elevate privileges on affected systems. Microsoft identifies the weakness class but has not disclosed the specific buffer, field, or driver operation that reads beyond its boundary. Exploitation requires existing low-privilege local access and can grant higher privileges without user interaction.
The record
- CVE
- CVE-2023-36904
- Published
- Aug 8, 2023
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-126, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 8, 2023CVE publishedPublication date reported by the CVE source.
- Aug 10, 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 <10.0.17763.4737
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.
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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