CVE-2025-66264

HIGH EPSS 1.2%

Published Nov 26, 20257mo ago · Modified Jun 17, 20261w ago

7.2 CVSS 4.0

High

Published Nov 26, 2025 7mo ago

Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score

7.2

Exploitability

—

Impact

—

Vector string

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/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

Attack Vector Local

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

1.2% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-428

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.