Local information disclosure via NTFS out-of-bounds read
Published Aug 11, 2026 · Updated Aug 25, 2026
Out-of-bounds read in Microsoft Windows NTFS allows local users with authorization to disclose information from affected systems. Microsoft identifies NTFS as the locus but has not published the affected routine, attacker-controlled input, or missing boundary check. Low-privilege local access is required, and the documented consequence is limited to reading information.
Summary
What happened
Out-of-bounds read in Microsoft Windows NTFS allows local users with authorization to disclose information from affected systems. Microsoft identifies NTFS as the locus but has not published the affected routine, attacker-controlled input, or missing boundary check. Low-privilege local access is required, and the documented consequence is limited to reading information.
The record
- CVE
- CVE-2026-62887
- Published
- Aug 11, 2026
- Updated
- Aug 25, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-125, CAPEC-540, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 11, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 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 <10.0.17763.9121
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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