CVE-2025-62456
Unknown Unknown - Not Provided
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Publication date: 2025-12-09

Last updated on: 2025-12-12

Assigner: Microsoft Corporation

Description
Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to execute code over a network.
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Meta Information
Published
2025-12-09
Last Modified
2025-12-12
Generated
2026-06-16
AI Q&A
2025-12-09
EPSS Evaluated
2026-06-15
NVD
CVE-2025-62456
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
microsoft windows_11_23h2 to 10.0.22631.6345 (inc)
microsoft windows_server_2022_23h2 to 10.0.25398.2025 (inc)
microsoft windows_11_24h2 to 10.0.26100.7392 (inc)
microsoft windows_11_25h2 to 10.0.26200.7392 (inc)
microsoft windows_server_2025 to 10.0.26100.7392 (inc)
microsoft windows *
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 vulnerability is a heap-based buffer overflow in the Windows Resilient File System (ReFS) that allows an authorized attacker to execute code remotely over a network.

Impact Analysis

An attacker who is authorized and can access the network could exploit this vulnerability to execute arbitrary code, potentially leading to full system compromise, data corruption, or denial of service.

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