CVE-2025-57781
📋 TL;DR
This vulnerability allows attackers to execute arbitrary code by exploiting insecure DLL loading in DENSO TEN drive recorder viewer installers. Attackers can plant malicious DLLs in directories searched by the installer, leading to code execution with the privileges of the user running the installer. This affects users who install or run the vulnerable viewer software.
💻 Affected Systems
- DENSO TEN drive recorder viewer
⚠️ 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 if installer is run with administrative privileges, allowing attackers to install persistent malware, steal sensitive data, or gain complete control of the system.
Likely Case
Local privilege escalation leading to malware installation, data theft, or system manipulation when users run the installer from untrusted locations.
If Mitigated
Limited impact if users run installers with minimal privileges and from trusted directories only.
🎯 Exploit Status
Exploitation requires local access or ability to plant DLLs in directories the installer searches. User must execute the installer from a compromised location.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Updated installer version as referenced in vendor advisory
Vendor Advisory: https://www.denso-ten.com/jp/information/topics/2025/1002
Restart Required: No
Instructions:
1. Download the updated installer from DENSO TEN's official website. 2. Uninstall any existing vulnerable viewer software. 3. Run the new installer from a trusted location. 4. Verify installation completes without errors.
🔧 Temporary Workarounds
Run installer from trusted directory
windowsAlways execute the installer from a trusted, secure directory (like Downloads folder) rather than network shares or removable media.
Use least privilege
windowsRun the installer with standard user privileges rather than administrative rights when possible.
🧯 If You Can't Patch
- Restrict installer execution to trusted directories only
- Implement application whitelisting to prevent unauthorized installer execution
🔍 How to Verify
Check if Vulnerable:
Check if you have DENSO TEN drive recorder viewer installed and verify the installer version against the vendor advisory.Check Version:
Check the viewer application properties or installer metadata for version informationVerify Fix Applied:
Download and run the updated installer from the official vendor website, ensuring it completes without DLL loading errors.📡 Detection & Monitoring
Log Indicators:
- Failed DLL loading attempts from installer process
- Unusual process creation from installer executable
Network Indicators:
- None - this is a local attack vector
SIEM Query:
Process Creation where (Image contains 'installer' OR ParentImage contains 'installer') AND CommandLine contains 'dll'