CVE-2026-22906 — AI Deep Analysis Summary

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

🚨 **Essence**: Hardcoded AES-ECB keys store user credentials. 💥 **Consequences**: Attackers can decrypt and recover **plaintext usernames and passwords**. Critical integrity and confidentiality loss.

Q: Root Cause? (CWE/Flaw)

🛡️ **CWE-321**: Use of Hard-coded Cryptographic Key. ❌ **Flaw**: The device uses a static, unchangeable key for AES-ECB encryption, making decryption trivial for anyone who knows the algorithm.

Q: Who is affected? (Versions/Components)

🏭 **Affected**: WAGO Industrial-Managed-Switch. 📦 **Models**: **0852-1322** and **0852-1328**. 🇩🇪 **Vendor**: WAGO (Germany).

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

🕵️ **Hackers Can**: Decrypt stored credentials without authentication. 🔓 **Privileges**: Full access to **plaintext usernames and passwords**. 📊 **Impact**: High (CVSS: Critical).

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

📉 **Threshold**: **LOW**. 🔑 **Auth**: No authentication required (PR:N). 🌐 **Access**: Remote (AV:N). 🎯 **Complexity**: Low (AC:L).

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

🚫 **Public Exp?**: No PoCs or wild exploits listed in data. ⚠️ **Risk**: However, the flaw is fundamental (CWE-321), making custom exploitation highly likely.

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

🔍 **Self-Check**: Scan for WAGO 0852-1322/1328 models. 📡 **Feature**: Check if credentials are stored using AES-ECB with known/hardcoded keys. 📝 **Ref**: VDE-2026-004 advisory.

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

🩹 **Fix**: Official patch info not explicitly detailed in snippet. 📅 **Published**: 2026-02-09. 🔗 **Source**: VDE Advisory VDE-2026-004.

Q: What if no patch? (Workaround)

🛑 **Workaround**: **Isolate** the switches from untrusted networks. 🔄 **Action**: Change default credentials if possible (though storage remains weak). 👁️ **Monitor**: Watch for unauthorized access attempts.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. ⚡ **Priority**: Immediate action required. 📉 **CVSS**: High (C:H/I:H/A:H). 🏭 **Context**: Industrial infrastructure is high-value target.

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**: Hardcoded AES-ECB keys store user credentials. <br>💥 **Consequences**: Attackers can decrypt and recover **plaintext usernames and passwords**. Critical integrity and confidentiality loss.

Q2Root Cause? (CWE/Flaw)

🛡️ **CWE-321**: Use of Hard-coded Cryptographic Key. <br>❌ **Flaw**: The device uses a static, unchangeable key for AES-ECB encryption, making decryption trivial for anyone who knows the algorithm.

Q3Who is affected? (Versions/Components)

🏭 **Affected**: WAGO Industrial-Managed-Switch. <br>📦 **Models**: **0852-1322** and **0852-1328**. <br>🇩🇪 **Vendor**: WAGO (Germany).

Q4What can hackers do? (Privileges/Data)

🕵️ **Hackers Can**: Decrypt stored credentials without authentication. <br>🔓 **Privileges**: Full access to **plaintext usernames and passwords**. <br>📊 **Impact**: High (CVSS: Critical).

Q5Is exploitation threshold high? (Auth/Config)

📉 **Threshold**: **LOW**. <br>🔑 **Auth**: No authentication required (PR:N). <br>🌐 **Access**: Remote (AV:N). <br>🎯 **Complexity**: Low (AC:L).

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

🚫 **Public Exp?**: No PoCs or wild exploits listed in data. <br>⚠️ **Risk**: However, the flaw is fundamental (CWE-321), making custom exploitation highly likely.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for WAGO 0852-1322/1328 models. <br>📡 **Feature**: Check if credentials are stored using AES-ECB with known/hardcoded keys. <br>📝 **Ref**: VDE-2026-004 advisory.

Q8Is it fixed officially? (Patch/Mitigation)

🩹 **Fix**: Official patch info not explicitly detailed in snippet. <br>📅 **Published**: 2026-02-09. <br>🔗 **Source**: VDE Advisory VDE-2026-004.

Q9What if no patch? (Workaround)

🛑 **Workaround**: **Isolate** the switches from untrusted networks. <br>🔄 **Action**: Change default credentials if possible (though storage remains weak). <br>👁️ **Monitor**: Watch for unauthorized access attempts.

Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. <br>⚡ **Priority**: Immediate action required. <br>📉 **CVSS**: High (C:H/I:H/A:H). <br>🏭 **Context**: Industrial infrastructure is high-value target.

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Vulnerability detail Full AI analysis (login) WAGO CWE-321