CVE-2025-66264

HIGH

CMService.exe - Privilege Escalation

Title source: llm
STIX 2.1

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.

Scores

CVSS v4 7.2
EPSS 0.0002
EPSS Percentile 4.3%
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:H/SI:H/SA:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-428
Status published
Products (1)
MegaTec Taiwan/ClientMate 6.2.2
Published Nov 26, 2025
Tracked Since Feb 18, 2026