Local privilege escalation via out-of-bounds NTFS read
Published Sep 8, 2026 · Updated Sep 9, 2026
Out-of-bounds read in Windows NTFS allows local authorized users on affected Windows releases to elevate privileges. Microsoft has not disclosed the NTFS code path, input structure, or incorrect bounds operation that causes the read. Exploitation requires high local privileges and no user interaction; the reported consequence is privilege elevation on the host.
Summary
What happened
Out-of-bounds read in Windows NTFS allows local authorized users on affected Windows releases to elevate privileges. Microsoft has not disclosed the NTFS code path, input structure, or incorrect bounds operation that causes the read. Exploitation requires high local privileges and no user interaction; the reported consequence is privilege elevation on the host.
The record
- CVE
- CVE-2026-72935
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-125, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 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 <10.0.17763.9245
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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