CVE-2025-10641

Unencrypted cleartext communication in EfficientLab WorkExaminer Professional

Published Oct 21, 2025 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description
All WorkExaminer Professional traffic between monitoring client, console and server is transmitted as plain text. This allows an attacker with access to the network to read the transmitted sensitive data. An attacker can also freely modify the data on the wire. The monitoring clients transmit their data to the server using the unencrypted FTP. Clients connect to the FTP server on port 12304 and transmit the data unencrypted. In addition, all traffic between the console client and the server at port 12306 is unencrypted.

Remediation

Vendor Solution

The vendor responded to the submission of our security vulnerabilities by stating that they are not within the scope of their bug bounty program. After telling them that we do not care about the bug bounty but a fix for the issues, we did not receive any further response. Hence, there is no fix available for the identified security issues and we assume that this product is unmaintained. We urge customers to contact EfficientLab regarding the issues and a potential solution, such as using another product.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Efficientlab
Efficientlab workexaminer Professional
Vendors & Products Efficientlab
Efficientlab workexaminer Professional
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description All WorkExaminer Professional traffic between monitoring client, console and server is transmitted as plain text. This allows an attacker with access to the network to read the transmitted sensitive data. An attacker can also freely modify the data on the wire. The monitoring clients transmit their data to the server using the unencrypted FTP. Clients connect to the FTP server on port 12304 and transmit the data unencrypted. In addition, all traffic between the console client and the server at port 12306 is unencrypted.
Title Unencrypted cleartext communication in EfficientLab WorkExaminer Professional
Weaknesses CWE-319
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
SEC-VLab
Published
Updated
Nov 3, 2025, 5:31 PM
Reserved
Sep 17, 2025, 2:05 PM
Status
Deferred
Published
Oct 21, 2025, 12:15 PM
Modified
Oct 8, 2026, 11:10 AM