CVE-2025-59818 — AI Deep Analysis Summary

🚨 **Essence**: Zenitel TCIS-3+ IP intercoms suffer from **Command Injection**. 📉 **Consequences**: Attackers can execute arbitrary commands on the underlying system via malicious file uploads.…

🛡️ **Root Cause**: **Improper Input Validation** on uploaded filenames. 🐛 **Flaw**: The system fails to sanitize file names, allowing shell metacharacters to be interpreted as commands by the OS.…

🏢 **Vendor**: Zenitel (Norway). 📱 **Product**: **TCIS-3+** IP Intercom Terminal. 🌍 **Scope**: Devices running vulnerable firmware versions (check vendor advisory for specific versions).

👑 **Privileges**: System-level access (Root/Admin). 📂 **Data**: Full read/write access to system files. 🎮 **Control**: Complete remote control of the intercom device.…

🔑 **Auth Required**: **Yes**. 🚫 **Threshold**: Medium. ⚠️ **Condition**: Attacker must be **authenticated** to upload files. 📡 **Network**: Remote exploitable (AV:N). 🖱️ **User Interaction**: None required (UI:N).

🧪 **Public Exploit**: **No**. 📜 **PoC**: None available in the provided data. 🌐 **Wild Exploitation**: Low risk currently, as no public proof-of-concept exists. 🔒 **Status**: Vendor advisory only.

🔍 **Check Method**: Scan for **Zenitel TCIS-3+** devices. 📤 **Test**: Attempt authenticated file upload with **malicious filename payloads** (e.g., `; ls`).…

🩹 **Fix Available**: **Yes**. 📝 **Source**: **Zenitel Security Advisory** (PDF: A100K12333). 🔄 **Action**: Update to the patched firmware version listed in the advisory. 📅 **Published**: 2026-02-04.

🚧 **Workaround**: Restrict **authenticated access** to the device. 🚫 **Mitigation**: Disable file upload features if not critical. 🌐 **Network**: Isolate devices from untrusted networks.…

🔥 **Urgency**: **High**. 📈 **Priority**: Patch immediately. ⚖️ **Reason**: CVSS is High (likely 8.0+), and it allows **RCE** with authentication. 🛡️ **Risk**: Critical infrastructure (intercoms) are high-value targets.…