CVE-2025-30033
📋 TL;DR
This DLL hijacking vulnerability in a setup component allows attackers to execute arbitrary code when legitimate users install applications using the affected component. Attackers can plant malicious DLLs in directories searched before legitimate ones during installation. This affects systems where users install software using the vulnerable setup component.
💻 Affected Systems
- Siemens products using affected setup component
⚠️ 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
Full system compromise with attacker gaining the same privileges as the installing user, potentially leading to persistent backdoors, data theft, or ransomware deployment.
Likely Case
Local privilege escalation or initial foothold for further attacks, often leading to malware installation or credential harvesting.
If Mitigated
Limited impact due to restricted user permissions, application control policies, or network segmentation preventing lateral movement.
🎯 Exploit Status
Exploitation requires local access or ability to place malicious DLL in installation directory path.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Siemens advisory SSA-282044 for specific patched versions
Vendor Advisory: https://cert-portal.siemens.com/productcert/html/ssa-282044.html
Restart Required: Yes
Instructions:
1. Review Siemens advisory SSA-282044. 2. Identify affected products in your environment. 3. Apply vendor-provided patches or updates. 4. Restart systems as required.
🔧 Temporary Workarounds
Restrict DLL search path
windowsConfigure system to use SafeDllSearchMode or set DLL search order to prioritize system directories
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager" /v SafeDllSearchMode /t REG_DWORD /d 1 /f
Application control policies
windowsImplement application whitelisting to prevent execution of unauthorized DLLs
🧯 If You Can't Patch
- Restrict user permissions to prevent writing to installation directories
- Monitor for suspicious DLL loading events and file creation in installation paths
🔍 How to Verify
Check if Vulnerable:
Check if affected Siemens products are installed using version information from vendor advisoryCheck Version:
Product-specific; consult Siemens documentation for version checking commandsVerify Fix Applied:
Verify installed version matches patched version from Siemens advisory📡 Detection & Monitoring
Log Indicators:
- DLL loading from unusual directories
- Process creation during installation from non-standard paths
- File creation events in installation directories
Network Indicators:
- Unexpected outbound connections following software installation
SIEM Query:
EventID=7 (Image loaded) AND (ImagePath contains *.dll) AND (ImagePath not contains System32) AND (ProcessName contains setup OR installer)