CVE-2025-10089: Malicious Code Execution Vulnerability in Setting and Operation Application for Lighting Control System MILCO.S

Severity: high (CVSS 7.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-11-18 · updated 2026-10-18
Weakness: CWE-427

Description

Uncontrolled Search Path Element Vulnerability in Setting and Operation Application for Lighting Control System MILCO.S Setting Application all versions, MILCO.S Setting Application (IR) all versions, MILCO.S Easy Setting Application (IR) all versions, and MILCO.S Easy Switch Application (IR) all versions allows a local attacker to execute malicious code by having installer to load a malicious DLL. However, if the signer name "Mitsubishi Electric Lighting" appears on the "Digital Signatures" tab of the properties for "MILCO.S Lighting Control.exe", the application is a fixed one. This vulnerability only affects when the installer is run, not after installation. If a user downloads directly from Mitsubishi Electric website and installs the affected product, there is no risk of malicious code being introduced.

Affected products

Mitsubishi Electric Corporation MILCO.S Easy Setting Application (IR): all versions
Mitsubishi Electric Corporation MILCO.S Easy Switch Application (IR): all versions
Mitsubishi Electric Corporation MILCO.S Setting Application: all versions
Mitsubishi Electric Corporation MILCO.S Setting Application (IR): all versions

References

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