CVE-2025-66266
Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-11-26

Last updated on: 2025-11-26

Assigner: Gridware

Description
The RupsMon.exe service executable in UPSilon 2000 has insecure permissions, allowing the 'Everyone' group Full Control. A local attacker can replace the executable with a malicious binary to execute code with SYSTEM privileges or simply change the config path of the service to a command; starting and stopping the service to immediately achieve code execution and privilege escalation

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Meta Information

Published
2025-11-26
Last Modified
2025-11-26
Generated
2026-07-06
AI Q&A
2025-11-26
EPSS Evaluated
2026-07-05
NVD
CVE-2025-66266
EUVD
EUVD-2025-199688

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
upsilon upsilon_2000 4.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-269 The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

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Executive Summary

This vulnerability involves the RupsMon.exe service executable in UPSilon 2000 having insecure permissions that allow the 'Everyone' group full control. This means a local attacker can replace the executable with a malicious binary or change the service's configuration path to a command. By starting and stopping the service, the attacker can execute code with SYSTEM privileges, leading to privilege escalation.

Impact Analysis

The vulnerability can allow a local attacker to execute arbitrary code with SYSTEM-level privileges on the affected system. This can lead to full control over the system, unauthorized access, and potential compromise of sensitive data or system integrity.

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