CVE-2026-6154 — AI Deep Analysis Summary

🚨 **Essence**: OS Command Injection in TOTOLINK A7100RU. 📉 **Consequences**: Full device compromise. Attackers can execute arbitrary system commands, leading to total loss of confidentiality, integrity, and availability.

🛡️ **Root Cause**: CWE-78 (OS Command Injection). 🐛 **Flaw**: Improper handling of the `wizard` parameter in the `setWizardCfg` function within `/cgi-bin/cstecgi.cgi`. User input is not sanitized before execution.

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

💀 **Privileges**: High. The vulnerability allows execution with the privileges of the CGI handler (often root or high-level system user).…

🔓 **Threshold**: Low. CVSS Vector indicates **No Privileges Required** (PR:N) and **No User Interaction** (UI:N). 🌐 **Access**: Network Accessible (AV:N) with Low Complexity (AC:L).…

🔍 **Exploit Status**: Public references exist. 📂 **GitHub**: A PoC/README is available at `github.com/Litengzheng/vuldb_new`. 📝 **VDB**: Technical descriptions and CTI indicators are published in VDB-357034.

🔎 **Self-Check**: Scan for the specific CGI endpoint `/cgi-bin/cstecgi.cgi`. 📡 **Target**: Look for the `setWizardCfg` function calls.…

🩹 **Patch Info**: The data does not explicitly confirm a released patch. 📅 **Published**: 2026-04-13. 🏢 **Vendor**: Totolink official site is listed, but no specific patch download link is provided in the data.…

🚧 **Workaround**: If no patch exists, block external access to the router's management interface. 🛑 **Mitigation**: Disable remote management features.…

🔥 **Urgency**: Critical. 📈 **Priority**: Immediate Action Required. With CVSS High severity (likely 9.8+), no auth required, and public exploit availability, this poses an immediate threat to network security.…