CVE-2026-7244 — AI Deep Analysis Summary

Q: What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Critical OS Command Injection in TOTOLINK A8000RU. 💥 **Consequences**: Attackers can execute arbitrary system commands, leading to total device compromise, data theft, and network takeover.

Q: Who is affected? (Versions/Components)

📦 **Affected Product**: TOTOLINK A8000RU Wireless Router. 📌 **Specific Version**: Firmware **7.1cu.643_b20200521**. 🏢 **Vendor**: TOTOLINK (China Jicong Electronics).

Q: What can hackers do? (Privileges/Data)

👑 **Privileges**: Likely **Root/System** level access due to CGI handler execution. 📂 **Data Impact**: High (H). Attackers can read sensitive configs, credentials, and potentially pivot to internal network devices.

Q: Is exploitation threshold high? (Auth/Config)

⚡ **Threshold**: **LOW**. 🔓 **Auth**: **None Required** (PR:N). 🌐 **Network**: Remote (AV:N). 🎯 **Complexity**: Low (AC:L). No user interaction needed (UI:N).

Q: Is there a public Exp? (PoC/Wild Exploitation)

📂 **Public Exploit**: Yes. 🔗 **Source**: GitHub PoC available (Litengzheng/vuldb_new2). ⚠️ **Status**: Active exploitation indicators exist in CTI reports.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. 🚨 **Priority**: **Immediate Action Required**. 📉 **Risk**: CVSS 9.8 (High). Remote, unauthenticated, and high impact. Patch or isolate immediately.

Updated May 06, 2026 CVSS 9.8 · Critical

This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis →

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Critical OS Command Injection in TOTOLINK A8000RU. <br>💥 **Consequences**: Attackers can execute arbitrary system commands, leading to total device compromise, data theft, and network takeover.

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-78** (OS Command Injection).…

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Q3Who is affected? (Versions/Components)

📦 **Affected Product**: TOTOLINK A8000RU Wireless Router. <br>📌 **Specific Version**: Firmware **7.1cu.643_b20200521**. <br>🏢 **Vendor**: TOTOLINK (China Jicong Electronics).

Q4What can hackers do? (Privileges/Data)

👑 **Privileges**: Likely **Root/System** level access due to CGI handler execution. <br>📂 **Data Impact**: High (H). Attackers can read sensitive configs, credentials, and potentially pivot to internal network devices.

Q5Is exploitation threshold high? (Auth/Config)

⚡ **Threshold**: **LOW**. <br>🔓 **Auth**: **None Required** (PR:N). <br>🌐 **Network**: Remote (AV:N). <br>🎯 **Complexity**: Low (AC:L). No user interaction needed (UI:N).

Q6Is there a public Exp? (PoC/Wild Exploitation)

📂 **Public Exploit**: Yes. <br>🔗 **Source**: GitHub PoC available (Litengzheng/vuldb_new2). <br>⚠️ **Status**: Active exploitation indicators exist in CTI reports.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for the specific CGI endpoint: `/cgi-bin/cstecgi.cgi`. <br>🧪 **Test**: Attempt to inject commands via the `merge` parameter in the `setWiFiEasyGuestCfg` function.…

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Q8Is it fixed officially? (Patch/Mitigation)

🛠️ **Official Fix**: Check TOTOLINK official website for firmware updates. <br>📝 **Note**: The CVE was published in April 2026; ensure you have the latest stable release from the vendor.…

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Q9What if no patch? (Workaround)

🚧 **No Patch Workaround**: <br>1. **Disable** remote management interfaces. <br>2. **Restrict** access to the router's web UI to trusted LAN IPs only. <br>3.…

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Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. <br>🚨 **Priority**: **Immediate Action Required**. <br>📉 **Risk**: CVSS 9.8 (High). Remote, unauthenticated, and high impact. Patch or isolate immediately.

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Vulnerability detail Full AI analysis (login) Totolink CWE-78