CVE-2025-3621 — AI Deep Analysis Summary

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

🚨 **Essence**: ProTNS ActADUR has critical flaws including **Command Injection** and **Hardcoded Credentials**. 🔥 **Consequences**: Attackers can achieve **Remote Code Execution (RCE)** and full system compromise.

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-77 (Command Injection)**. ⚠️ **Flaws**: Improper authentication, hardcoded passwords, and binding to unrestricted IPs.

Q: Who is affected? (Versions/Components)

📦 **Affected**: ProTNS ActADUR. 📅 **Versions**: 2.0.1.9 **through** 2.0.2.0 (exclusive).

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

💀 **Hackers Can**: Execute arbitrary commands. 🔓 **Privileges**: Full control over the server. 📂 **Data**: High risk of data theft and integrity loss.

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

⚡ **Threshold**: **LOW**. 🔑 **Auth**: None required (PR:N). 🌐 **Network**: Accessible via LAN (AV:A).

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

🕵️ **Public Exp?**: **No**. 📄 **PoCs**: Empty list in data. ⚠️ **Risk**: Wild exploitation likely due to low barrier.

Q: How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for ProTNS ActADUR services. 📡 **Features**: Check for open ports on default IPs. 🧪 **Test**: Verify version numbers against affected range.

Q: Is it fixed officially? (Patch/Mitigation)

🛠️ **Fixed?**: Yes, update to **v2.0.2.1+**. 🔗 **Ref**: [ProTNS Official](https://www.protns.com/53). ✅ **Action**: Patch immediately.

Q: What if no patch? (Workaround)

🚧 **No Patch?**: Isolate the server. 🚫 **Network**: Block external access. 🔒 **Config**: Change default credentials if possible.

Q: Is it urgent? (Priority Suggestion)

🔴 **Urgency**: **CRITICAL**. 📈 **Priority**: Fix **NOW**. ⏳ **CVSS**: High impact (C:H, I:H). Do not delay.

Updated May 06, 2026 CVSS 9.6 · 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**: ProTNS ActADUR has critical flaws including **Command Injection** and **Hardcoded Credentials**. <br>🔥 **Consequences**: Attackers can achieve **Remote Code Execution (RCE)** and full system compromise.

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-77 (Command Injection)**. <br>⚠️ **Flaws**: Improper authentication, hardcoded passwords, and binding to unrestricted IPs.

Q3Who is affected? (Versions/Components)

📦 **Affected**: ProTNS ActADUR. <br>📅 **Versions**: 2.0.1.9 **through** 2.0.2.0 (exclusive).

Q4What can hackers do? (Privileges/Data)

💀 **Hackers Can**: Execute arbitrary commands. <br>🔓 **Privileges**: Full control over the server. <br>📂 **Data**: High risk of data theft and integrity loss.

Q5Is exploitation threshold high? (Auth/Config)

⚡ **Threshold**: **LOW**. <br>🔑 **Auth**: None required (PR:N). <br>🌐 **Network**: Accessible via LAN (AV:A).

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

🕵️ **Public Exp?**: **No**. <br>📄 **PoCs**: Empty list in data. <br>⚠️ **Risk**: Wild exploitation likely due to low barrier.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for ProTNS ActADUR services. <br>📡 **Features**: Check for open ports on default IPs. <br>🧪 **Test**: Verify version numbers against affected range.

Q8Is it fixed officially? (Patch/Mitigation)

🛠️ **Fixed?**: Yes, update to **v2.0.2.1+**. <br>🔗 **Ref**: [ProTNS Official](https://www.protns.com/53). <br>✅ **Action**: Patch immediately.

Q9What if no patch? (Workaround)

🚧 **No Patch?**: Isolate the server. <br>🚫 **Network**: Block external access. <br>🔒 **Config**: Change default credentials if possible.

Q10Is it urgent? (Priority Suggestion)

🔴 **Urgency**: **CRITICAL**. <br>📈 **Priority**: Fix **NOW**. <br>⏳ **CVSS**: High impact (C:H, I:H). Do not delay.

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Vulnerability detail Full AI analysis (login) ProTNS CWE-77