CVE-2025-29631
📋 TL;DR
A critical remote code execution vulnerability in Gardyn 4 allows attackers to execute arbitrary code on affected systems. This affects all Gardyn 4 installations with the vulnerable component enabled. Attackers can potentially take full control of vulnerable systems.
💻 Affected Systems
- Gardyn 4
⚠️ 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 system compromise leading to data theft, ransomware deployment, or use as a botnet node.
Likely Case
Unauthorized access leading to data exfiltration, lateral movement within the network, or service disruption.
If Mitigated
Limited impact through network segmentation and proper access controls, potentially only affecting isolated components.
🎯 Exploit Status
The GitHub reference contains technical details that could be used to create exploits. The high CVSS score and CWE-94 (Code Injection) suggest straightforward exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: http://gardyn.com
Restart Required: Yes
Instructions:
1. Monitor Gardyn's official website for security updates. 2. Apply any available patches immediately. 3. Restart affected services after patching.
🔧 Temporary Workarounds
Network Isolation
linuxRestrict network access to Gardyn systems using firewall rules
iptables -A INPUT -p tcp --dport [GARDYN_PORT] -j DROP
ufw deny [GARDYN_PORT]
Service Disablement
linuxTemporarily disable Gardyn services if not critically needed
systemctl stop gardyn
systemctl disable gardyn
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Gardyn systems
- Deploy application-level firewalls or WAF with code injection protection rules
🔍 How to Verify
Check if Vulnerable:
Check if Gardyn 4 is installed and running without security updates from the vendorCheck Version:
grep -i version /opt/gardyn/config/* 2>/dev/null || gardyn --version 2>/dev/nullVerify Fix Applied:
Verify that the latest patched version from Gardyn is installed and running📡 Detection & Monitoring
Log Indicators:
- Unusual process execution from Gardyn services
- Suspicious command injection patterns in Gardyn logs
- Unexpected network connections from Gardyn systems
Network Indicators:
- Unusual outbound connections from Gardyn ports
- Traffic patterns indicating code execution attempts
SIEM Query:
source="gardyn.log" AND ("exec" OR "system" OR "popen" OR "command")