CVE-2026-62880

Analyzed Analyzed - Analysis Complete

Out-of-Bounds Read in Windows NTFS

Publication date: 2026-08-11

Last updated on: 2026-08-16

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-11

Last Modified

2026-08-16

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-62880

EUVD

EUVD-2026-56681

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
microsoft	windows_10_1607	to 10.0.14393.9418 (exc)
microsoft	windows_10_1607	to 10.0.14393.9418 (exc)
microsoft	windows_10_1809	to 10.0.17763.9115 (exc)
microsoft	windows_10_1809	to 10.0.17763.9115 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7517 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7517 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9106 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9106 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9106 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9106 (exc)
microsoft	windows_server_2016	to 10.0.14393.9418 (exc)
microsoft	windows_server_2019	to 10.0.17763.9115 (exc)
microsoft	windows_server_2022	to 10.0.20348.5440 (exc)
microsoft	windows_server_2025	to 10.0.26100.33222 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This is an out-of-bounds read vulnerability in Windows NTFS. It allows an authorized attacker with local access to elevate their privileges on the system. The flaw occurs when the NTFS component reads data beyond the allocated memory boundary, potentially exposing sensitive information or enabling privilege escalation.

Detection Guidance

Detection requires monitoring for unusual privilege escalation attempts or NTFS-related errors. Check Windows Event Logs for security events related to privilege changes or NTFS driver crashes. Use PowerShell commands like Get-WinEvent -LogName Security -MaxEvents 100 to review recent security logs for anomalies.

Impact Analysis

If exploited, this vulnerability could allow an attacker to gain higher-level permissions on your system. This might let them install programs, view or delete data, or create new accounts with full user rights. The impact is limited to local attacks, so remote exploitation is not possible without prior access.

Compliance Impact

This vulnerability allows local privilege escalation through an out-of-bounds read in Windows NTFS. While not directly impacting GDPR or HIPAA compliance, such vulnerabilities could enable unauthorized access to sensitive data, potentially violating confidentiality requirements under these regulations.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the NTFS vulnerability. Monitor Microsoft's security advisories for patches and install them promptly.

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