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
References (1)
Core 1
Core References
Various Sources
https://www.megatec.com.tw/software-download/
Scores
CVSS v4
7.1
EPSS
0.0011
EPSS Percentile
1.8%
CVSS:4.0/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
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-428
Status
published
Products (1)
MegaTec Taiwan/UPSilon2000V6.0
6.0.5
Published
Nov 26, 2025
Tracked Since
Feb 18, 2026