CVE-2025-32363

9.8 CRITICAL

📋 TL;DR

CVE-2025-32363 is a critical remote code execution vulnerability in mediDOK software versions before 2.5.18.43. Attackers can exploit insecure deserialization to execute arbitrary code on affected systems without authentication. All organizations running vulnerable mediDOK versions are at risk.

💻 Affected Systems

Products:
  • mediDOK
Versions: All versions before 2.5.18.43
Operating Systems: Windows
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability affects the default installation configuration and requires no special settings to be exploitable.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise allowing attackers to install malware, steal sensitive data, pivot to other systems, and maintain persistent access.

🟠

Likely Case

Attackers gain initial foothold on the system, deploy ransomware or data exfiltration tools, and potentially compromise the entire network.

🟢

If Mitigated

Attack attempts are blocked at network perimeter, or systems are isolated preventing lateral movement.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

The vulnerability requires no authentication and has a simple exploitation path via deserialization attacks.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.5.18.43

Vendor Advisory: https://medidok.de/neueversionen/update-medidok-2-5-18-43-verfugbar/

Restart Required: Yes

Instructions:

1. Download mediDOK version 2.5.18.43 from the vendor website. 2. Backup current configuration and data. 3. Install the update following vendor instructions. 4. Restart the mediDOK service or system as required.

🔧 Temporary Workarounds

Network Segmentation

all

Isolate mediDOK systems from internet and restrict network access to only necessary connections.

Application Firewall Rules

all

Implement WAF rules to block deserialization attack patterns and suspicious payloads.

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate mediDOK systems from critical infrastructure
  • Deploy intrusion detection systems to monitor for exploitation attempts and anomalous behavior

🔍 How to Verify

Check if Vulnerable:

Check mediDOK version in application settings or About dialog. If version is below 2.5.18.43, the system is vulnerable.

Check Version:

Check mediDOK application interface for version information (no CLI command available)

Verify Fix Applied:

Verify mediDOK version shows 2.5.18.43 or higher in application settings.

📡 Detection & Monitoring

Log Indicators:

  • Unusual process creation from mediDOK service
  • Deserialization errors or exceptions in application logs
  • Suspicious network connections originating from mediDOK

Network Indicators:

  • Unusual HTTP/S requests to mediDOK endpoints with serialized data
  • Outbound connections from mediDOK to unknown external IPs

SIEM Query:

source="medidok" AND (event_type="deserialization" OR process_name="cmd.exe" OR process_name="powershell.exe")

🔗 References

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