PT-2026-58475 · Microsoft · Refs+3

CVE-2026-50501

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Published

2026-07-14

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Updated

2026-07-22

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Windows 11 (affected versions not specified) Windows Server 2025 (affected versions not specified)
Description A stack-based buffer overflow exists in the Windows Resilient File System (ReFS), which is a file system designed to maintain data integrity. This flaw allows an unauthorized attacker to execute arbitrary code locally or remotely, potentially compromising the entire system.
Recommendations Apply the July updates for Windows 11. Apply the July updates for Windows Server 2025.

Fix

RCE

DoS

Stack Overflow

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Weakness Enumeration

Related Identifiers

CVE-2026-50501

Affected Products

Refs
Windows
Windows 11
Windows Server 2025