CVE-2025-66264

Severity CVSS v4.0:

HIGH

Type:

CWE-428 Unquoted Search Path or Element

Publication date:

26/11/2025

Last modified:

26/11/2025

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.

Impact

Vector 4.0

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 CVSS v4.0 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: 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

Attack Vector (AV): Local
Attack Complexity (AC): Low
Attack Requirements (AT): Present
Privileges Required (PR): Low
User Interaction (UI): None
Confidentiality (VC): High
Integrity (VI): Low
Availability (VA): Low
Confidentiality (SC): High
Integrity (SI): High
Availability (SA): High

Base Score 4.0

7.20

Severity 4.0

HIGH

References to Advisories, Solutions, and Tools

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