MegaTec ClientMate 6.2.2 CMService.exe unquoted search path

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in MegaTec ClientMate 6.2.2. Affected by this vulnerability is an unknown functionality of the file CMService.exe. The manipulation leads to unquoted search path. This vulnerability is referenced as CVE-2025-66264. The attack can only be performed from a local environment. No exploit is available.

Detailsinfo

A vulnerability was found in MegaTec ClientMate 6.2.2. It has been rated as critical. This issue affects an unknown code of the file CMService.exe. The manipulation with an unknown input leads to a unquoted search path vulnerability. Using CWE to declare the problem leads to CWE-428. The product uses a search path that contains an unquoted element, in which the element contains whitespace or other separators. This can cause the product to access resources in a parent path. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was published by Abdul Mhanni. It is possible to read the advisory at megatec.com.tw. The identification of this vulnerability is CVE-2025-66264 since 11/26/2025. The exploitation is known to be difficult. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/27/2025). The attack technique deployed by this issue is T1574.009 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-202511-2924). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.0
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Unquoted search path
CWE: CWE-428 / CWE-426
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/26/2025 Advisory disclosed
11/26/2025 +0 days CVE reserved
11/26/2025 +0 days VulDB entry created
11/27/2025 +1 days VulDB entry last update

Sourcesinfo

Advisory: megatec.com.tw
Researcher: Abdul Mhanni
Status: Confirmed

CVE: CVE-2025-66264 (🔒)
GCVE (CVE): GCVE-0-2025-66264
GCVE (VulDB): GCVE-100-333575
CNNVD: CNNVD-202511-2924 - MegaTec ClientMate 安全漏洞

Entryinfo

Created: 11/26/2025 06:52
Updated: 11/27/2025 20:54
Changes: 11/26/2025 06:52 (66), 11/27/2025 20:54 (6)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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