CVE-2025-10640
📋 TL;DR
CVE-2025-10640 allows unauthenticated attackers to bypass authentication on WorkExaminer Professional servers by exploiting missing server-side validation of database procedure return values. This grants administrative access to sensitive employee monitoring data including screenshots and keystrokes. Organizations using WorkExaminer Professional with exposed TCP port 12306 are affected.
💻 Affected Systems
- WorkExaminer Professional
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of all monitored employee data, potential data exfiltration, installation of additional malware, and complete control over the monitoring infrastructure.
Likely Case
Unauthorized access to sensitive employee monitoring data including screenshots, keystrokes, and activity logs, potentially leading to privacy violations and corporate espionage.
If Mitigated
Limited or no impact if proper network segmentation and access controls prevent external access to port 12306.
🎯 Exploit Status
Exploitation requires only network access to port 12306 and knowledge of the custom protocol. Public disclosure includes technical details that facilitate exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not provided in CVE
Restart Required: No
Instructions:
1. Contact WorkExaminer vendor for patch availability. 2. If patch is available, download and apply according to vendor instructions. 3. Restart WorkExaminer services if required by patch.
🔧 Temporary Workarounds
Network Access Restriction
windowsBlock external and unnecessary internal access to TCP port 12306 using firewall rules.
Windows Firewall: netsh advfirewall firewall add rule name="Block WorkExaminer Port" dir=in action=block protocol=TCP localport=12306
Network Segmentation
allIsolate WorkExaminer servers in a separate network segment with strict access controls.
🧯 If You Can't Patch
- Implement strict network access controls to limit access to TCP port 12306 only to authorized administrative systems
- Monitor network traffic to port 12306 for suspicious activity and implement intrusion detection rules
🔍 How to Verify
Check if Vulnerable:
Test if unauthenticated access to TCP port 12306 allows administrative console access. Use network scanning to check port accessibility: nmap -p 12306 <target_ip>Check Version:
Check WorkExaminer Professional version through administrative console or installed programs listVerify Fix Applied:
Verify that authentication is properly required for console access and test that unauthenticated access attempts are rejected.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful administrative access
- Unusual administrative console access from non-standard IP addresses
- Database procedure calls without preceding authentication events
Network Indicators:
- TCP connections to port 12346 from unexpected sources
- Unencrypted protocol traffic on port 12346 matching WorkExaminer patterns
- Multiple rapid connection attempts to port 12346
SIEM Query:
source_port=12346 AND (event_type="authentication_success" OR event_type="admin_access") AND user="unknown" OR source_ip NOT IN [authorized_admin_ips]