SYSTEM privilege escalation via stack buffer overflow
Published Sep 12, 2023 · Updated Oct 30, 2025
Stack-based buffer overflow in Microsoft's Windows Cloud Files Mini Filter Driver allows local users to elevate privileges to SYSTEM. Microsoft identifies a stack overwrite but has not disclosed the affected routine, attacker-controlled input, or faulty bounds operation. Exploitation requires prior local low-privilege access and can yield complete control of the affected Windows host.
Summary
What happened
Stack-based buffer overflow in Microsoft's Windows Cloud Files Mini Filter Driver allows local users to elevate privileges to SYSTEM. Microsoft identifies a stack overwrite but has not disclosed the affected routine, attacker-controlled input, or faulty bounds operation. Exploitation requires prior local low-privilege access and can yield complete control of the affected Windows host.
The record
- CVE
- CVE-2023-35355
- Published
- Sep 12, 2023
- Updated
- Oct 30, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-121, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 12, 2023CVE publishedPublication date reported by the CVE source.
- Oct 30, 2025Record 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 <10.0.17763.4851
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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