CVE-2026-20922
Unknown Unknown - Not Provided
Heap-Based Buffer Overflow in Windows NTFS Enables Local Code Execution

Publication date: 2026-01-13

Last updated on: 2026-01-13

Assigner: Microsoft Corporation

Description
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.
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Meta Information
Published
2026-01-13
Last Modified
2026-01-13
Generated
2026-05-07
AI Q&A
2026-01-14
EPSS Evaluated
2026-05-05
NVD
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().
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a heap-based buffer overflow in Windows NTFS that allows an authorized attacker to execute code locally on the affected system. [1]


How can this vulnerability impact me? :

An attacker who is authorized on the system can exploit this vulnerability to execute arbitrary code locally, potentially leading to full system compromise including confidentiality, integrity, and availability impacts. [1]


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