CVE-2026-6115 — AI Deep Analysis Summary

🚨 **Essence**: A critical OS Command Injection flaw in the **TOTOLINK A7100RU** router.…

🛡️ **Root Cause**: **CWE-78** (OS Command Injection). <br>🔍 **Flaw**: The `setAppCfg` function in `/cgi-bin/cstecgi.cgi` fails to properly sanitize the `enable` parameter.…

📦 **Affected Product**: **TOTOLINK A7100RU** Wireless Router. <br>📅 **Specific Version**: **7.4cu.2313_b20191024**. <br>⚠️ **Vendor**: Totolink (China Jion Electronics).…

👑 **Privileges**: **Root/System Level**. <br>📂 **Data Access**: Full read/write access to the router’s file system. <br>🌐 **Network Impact**: Can pivot to attack other devices on the LAN.…

⚡ **Threshold**: **LOW**. <br>🔓 **Auth**: **None Required** (PR:N). <br>📡 **Vector**: Network (AV:N). <br>🎯 **Complexity**: Low (AC:L). Any unauthenticated user on the network can trigger this via the CGI endpoint.…

🔓 **Public Exploit**: **Yes**. <br>📂 **Evidence**: References include a GitHub PoC (`Litengzheng/vuldb_new`) and VDB entries.…

🔍 **Self-Check**: <br>1. Scan for open ports serving `/cgi-bin/cstecgi.cgi`. <br>2. Test the `setAppCfg` endpoint with injection payloads (e.g., `; ls`). <br>3.…

🩹 **Official Fix**: **Unknown/Not Explicitly Stated** in the provided data. <br>📝 **Note**: The CVE was published in **2026**, suggesting this is a future-dated or hypothetical scenario in the prompt context.…

🚧 **Workaround**: <br>1. **Isolate**: Move the router to a guest network/VLAN. <br>2. **Block**: Firewall rules blocking external access to port 80/443 if exposed. <br>3.…

🔴 **Urgency**: **CRITICAL**. <br>🚀 **Priority**: **Immediate Action Required**. <br>💡 **Reason**: Unauthenticated, remote code execution with high CVSS score.…