CVE-2025-66269 – Unquoted Service Path in UPSilon2000V6.0(RupsMon and USBMate) running as SYSTEM

The following table lists the changes that have been made to the
CVE-2025-66269 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by b7efe717-a805-47cf-8e9a-921fca0ce0ce

    Nov. 26, 2025

    Action Type Old Value New Value
    Added Description The RupsMon and USBMate services in UPSilon 2000 run with SYSTEM privileges and contain unquoted service paths. This allows a local attacker to perform path interception and escalate privileges if they have write permissions to the directories proceeding that of which the real service executables live in
    Added CVSS V4.0 AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:H/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-428
    Added Reference https://www.megatec.com.tw/software-download/
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