CVE-2026-45636
Undergoing Analysis Undergoing Analysis - In Progress
Heap-based Buffer Overflow in Windows NTFS

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: Microsoft Corporation

Description
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
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Meta Information
Published
2026-06-09
Last Modified
2026-06-09
Generated
2026-06-10
AI Q&A
2026-06-09
EPSS Evaluated
N/A
NVD
CVE-2026-45636
EUVD
EUVD-2026-35559
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().
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
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Executive Summary

This vulnerability is a heap-based buffer overflow in the Windows NTFS file system. It allows an unauthorized attacker to execute code locally on the affected system.

Impact Analysis

The vulnerability can lead to remote code execution with high impact on confidentiality, integrity, and availability. An attacker could run malicious code on your system without proper authorization, potentially compromising your data and system stability.

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