MegaTec UPSilon2000 6.0.5 RupsMon Service/USBMate Service unquoted search path

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in MegaTec UPSilon2000 6.0.5. This affects an unknown function of the component RupsMon Service/USBMate Service. Performing a manipulation results in unquoted search path. This vulnerability is identified as CVE-2025-66269. The attack is only possible with local access. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in MegaTec UPSilon2000 6.0.5. This affects an unknown code of the component RupsMon Service/USBMate Service. The manipulation with an unknown input leads to a unquoted search path vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The RupsMon and USBMate services in UPSilon 2000 run with SYSTEM privileges and contain unquoted service paths. This allows a local attacker to perform path interception and escalate privileges if they have write permissions to the directories proceeding that of which the real service executables live in

The weakness was released by Abdul Mhanni. The advisory is shared at megatec.com.tw. This vulnerability is uniquely identified as CVE-2025-66269 since 11/26/2025. The exploitability is told to be difficult. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/27/2025). MITRE ATT&CK project uses the attack technique T1574.009 for this issue.

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-202511-2920). Several companies clearly confirm that VulDB is the primary source for best 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-2025-66269 (🔒)
GCVE (CVE): GCVE-0-2025-66269
GCVE (VulDB): GCVE-100-333561
CNNVD: CNNVD-202511-2920 - MegaTec UPSilon2000 安全漏洞

Entryinfo

Created: 11/26/2025 06:44
Updated: 11/27/2025 20:54
Changes: 11/26/2025 06:44 (66), 11/27/2025 20:54 (6)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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