CVE-2025-53418
📋 TL;DR
Delta Electronics COMMGR software contains a stack-based buffer overflow vulnerability (CWE-121) that allows attackers to execute arbitrary code or cause denial-of-service conditions. This affects industrial control systems using Delta's COMMGR software for communication management. Organizations using Delta automation products in manufacturing, energy, or critical infrastructure are at risk.
💻 Affected Systems
- Delta Electronics COMMGR
⚠️ 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
Remote code execution leading to complete system compromise, manipulation of industrial processes, data theft, or physical damage to equipment.
Likely Case
Denial-of-service causing communication disruption in industrial environments, potentially halting production lines or affecting process control.
If Mitigated
Limited impact if network segmentation and access controls prevent exploitation attempts.
🎯 Exploit Status
Buffer overflows in industrial software often have low exploitation complexity; no public exploits confirmed yet.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in advisory; contact Delta support for patched version.
Restart Required: Yes
Instructions:
1. Contact Delta Electronics support for patched version. 2. Backup configuration and data. 3. Install update following vendor instructions. 4. Restart system and verify functionality.
🔧 Temporary Workarounds
Network Segmentation
allIsolate COMMGR systems from untrusted networks using firewalls.
Access Control Restrictions
windowsLimit network access to COMMGR services to authorized IP addresses only.
# Windows firewall example: netsh advfirewall firewall add rule name="Block COMMGR" dir=in action=block protocol=TCP localport=<COMMGR_PORT> remoteip=<UNTRUSTED_NETWORKS>
🧯 If You Can't Patch
- Implement strict network segmentation to isolate COMMGR systems from business networks and internet.
- Deploy intrusion detection systems monitoring for buffer overflow attempts on COMMGR services.
🔍 How to Verify
Check if Vulnerable:
Check COMMGR version against vendor advisory; monitor for crash dumps or unexpected process termination.Check Version:
Check COMMGR application properties or vendor documentation for version information.Verify Fix Applied:
Verify installed version matches patched version from vendor; test communication functionality.📡 Detection & Monitoring
Log Indicators:
- Application crash logs
- Unexpected process termination
- Memory access violation errors
Network Indicators:
- Unusual traffic patterns to COMMGR ports
- Malformed packets targeting COMMGR services
SIEM Query:
source="COMMGR" AND (event_type="crash" OR event_type="access_violation")