CVE-2026-3697
📋 TL;DR
A stack-based buffer overflow vulnerability exists in Planet ICG-2510's web server language configuration handler. Remote attackers can exploit this by manipulating the Language argument to potentially execute arbitrary code or crash the device. This affects Planet ICG-2510 devices running firmware version 1.0_20250811.
💻 Affected Systems
- Planet ICG-2510
⚠️ 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 device compromise, data theft, or device becoming part of a botnet.
Likely Case
Device crash causing denial of service, potentially requiring physical reset.
If Mitigated
Limited impact if device is behind firewall with restricted HTTP access.
🎯 Exploit Status
Proof of concept available in GitHub repository. Remote exploitation without authentication makes weaponization likely.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
No official patch available. Vendor did not respond to disclosure. Consider workarounds or replacement.
🔧 Temporary Workarounds
Restrict HTTP Access
linuxBlock external access to the device's web interface using firewall rules.
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
Disable Web Interface
linuxTurn off the HTTP server if web management is not required.
killall httpd
rm /usr/sbin/httpd
🧯 If You Can't Patch
- Isolate device on separate VLAN with strict network segmentation
- Implement network-based intrusion detection to monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface or SSH: cat /etc/version | grep 1.0_20250811Check Version:
cat /etc/versionVerify Fix Applied:
No official fix to verify. Verify workarounds by testing HTTP access is blocked.📡 Detection & Monitoring
Log Indicators:
- HTTP requests with abnormal Language parameter values
- httpd process crashes in system logs
Network Indicators:
- Unusual HTTP POST requests to language configuration endpoints
- Traffic patterns suggesting buffer overflow attempts
SIEM Query:
source="httpd" AND (Language="*overflow*" OR Language="*AAAA*")