CVE-2026-62700
Received Received - Intake

Heap-based Buffer Overflow in Windows NTFS

Publication date: 2026-08-11

Last updated on: 2026-08-11

Assigner: Microsoft Corporation

Description
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.

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Meta Information

Published
2026-08-11
Last Modified
2026-08-11
Generated
2026-08-11
AI Q&A
2026-08-11
EPSS Evaluated
N/A
NVD
CVE-2026-62700
EUVD
EUVD-2026-56629

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft windows_ntfs *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

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Executive Summary

This is a heap-based buffer overflow vulnerability in Windows NTFS. It allows an authorized attacker with local access to elevate their privileges on the system by exploiting the overflow condition.

Impact Analysis

An attacker could gain higher-level permissions on your system, allowing them to install programs, view or delete data, or create new accounts with full user rights. This could lead to complete system compromise if exploited successfully.

Compliance Impact

This vulnerability could lead to unauthorized access or privilege escalation, potentially violating data protection requirements under GDPR or HIPAA. Organizations may face compliance violations if exploited, leading to legal or financial penalties.

Mitigation Strategies

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

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