CVE-2026-4567 — AI Deep Analysis Summary

🚨 **Essence**: A stack-based buffer overflow in Tenda A15 WiFi Extender. 📉 **Consequences**: Attackers can execute arbitrary code, leading to total device compromise, data theft, or denial of service.…

🛡️ **Root Cause**: **CWE-121** (Stack-based Buffer Overflow). The flaw lies in the `UploadCfg` function within `/cgi-bin/UploadCfg`. Improper handling of the `File` parameter allows buffer overflow. 🐛

📦 **Affected**: **Tenda A15** WiFi Extender. Specifically version **15.13.07.13**. If you are running this exact firmware, you are in the danger zone! ⚠️

💀 **Impact**: High! CVSS Score is **Critical (9.8)**. Hackers gain **Full Control** (Confidentiality, Integrity, Availability all High). They can escalate privileges and access sensitive network data. 🔓

🔓 **Threshold**: **Low**. CVSS vector shows `AV:N` (Network), `AC:L` (Low Complexity), `PR:N` (No Privileges Required), `UI:N` (No User Interaction). Remote, unauthenticated attackers can exploit this easily! 🎯

🧪 **Exploit Status**: No public PoC/Exploit listed in the data (`pocs: []`). However, technical descriptions exist in VDB.…

🔍 **Self-Check**: Scan for Tenda A15 devices running firmware **15.13.07.13**. Check if the `/cgi-bin/UploadCfg` endpoint is accessible. Use network scanners to detect vulnerable IoT devices on your LAN. 📡

🩹 **Fix Status**: The data does not explicitly confirm a patched version is released. The vendor is **Tenda**. You must check the official Tenda support site for a firmware update > 15.13.07.13. 🔄

🚧 **Workaround**: If no patch exists, **disable remote management** if possible. Isolate the device on a separate VLAN. Restrict access to the `/cgi-bin/UploadCfg` endpoint via firewall rules.…

🔥 **Urgency**: **CRITICAL**. With CVSS 9.8 and no auth required, this is a top-priority vulnerability. Patch immediately or isolate the device. Do not ignore this! 🚨