Unencrypted cleartext communication in EfficientLab WorkExaminer Professional
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-319.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| EfficientLab | WorkExaminer Professional | up to 4.0.0.52001 | — | No fix listed | CNA |
- WorkExaminer Professional VendorEfficientLab Affected up to 4.0.0.52001 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-10641
- 2026-10-03 Alias added: GHSA-6pj2-4cj6-vf8f
References
Advisory 1
More EfficientLab vulnerabilities
- TI-2025-09740 Missing Server-Side Authentication Checks in EfficientLab WorkExaminer Professional CVSS 3.1CRITICAL 9.8
- TI-2025-09739 Usage of Hardcoded FTP Credentials EfficientLab WorkExaminer Professional CVSS 3.1HIGH 8.8
- TI-2025-09654 DLL Hijacking in EfficientLab Controlio Leads to Local Privilege Escalation CVSS 3.1MEDIUM 5.1
Sources
- CVE-2025-10641 · CVE Program
- CVE-2025-10641 · NVD
- FIRST EPSS
- GHSA-6pj2-4cj6-vf8f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences