CVE-2025-66264

Unquoted Service path in UPSilon2000V6.0 SYSTEM privilege service

HIGH

7.2

CVSS Score

Published: November 26, 2025 at 01:09 AM UTC

Updated: October 18, 2026 at 08:10 PM UTC

1 product affected across 1 vendorClientMate

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Severity

HIGH7.2

Exploit prediction

EPSS 0.1%

SSVC

No known exploit

Description

The CMService.exe service runs with SYSTEM privileges and contains an unquoted service path. This allows a local attacker with write privileges to the filesystem to insert a malicious executable in the path, leading to privilege escalation.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

ClientMate · Megatec Taiwan

90%

6.2.2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord

https://www.megatec.com.tw/software-download/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.2HIGHGridware

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-428

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