CVE-2026-103665

High

Description

The installer for Yamaha LAN Monitor for Windows provided by Yamaha Corporation may insecurely load Dynamic Link Libraries (DLLs). When the installer is launched in a directory containing a specially crafted DLL file, the malicious DLL may be loaded, resulting in arbitrary code execution with administrative privileges.

SeverityHigh
CVSS8.4
Exploit probability—
ProductYamaha LAN Monitor for Windows
PublishedOct 29, 2026
First seenNov 4, 2026
Weakness typeCWE-427CWE-427

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
Yamaha Corporation Yamaha LAN Monitor for Windowsv ≤ Ver.1.9.3—

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