CVE-2026-6284 — AI Deep Analysis Summary

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-521** (Weak Password Requirements). 🔍 **Flaw**: Lack of password complexity rules. No account lockout or input limiters. Simple passwords are accepted without restriction.

Q: Who is affected? (Versions/Components)

🏭 **Affected**: Horner Automation products. 📦 **Components**: Cscape (Programming Software), XL7 PLC, XL4 PLC. ⚠️ **Scope**: Multiple products with similar authentication flaws.

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

💻 **Hackers Can**: Brute-force or guess weak passwords. 🔓 **Privileges**: Gain unauthorized network access. 📊 **Data**: Full read/write access to PLC logic. Potential for operational disruption or data theft.

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

📉 **Threshold**: **LOW**. 🔑 **Auth**: No authentication required to attempt login (PR:N). ⚙️ **Config**: Low complexity allows easy guessing. No rate limiting (AC:L).

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

🚫 **Public Exp?**: **No**. 📂 **PoCs**: None listed in references. 🌐 **Wild Exp**: Unlikely to be automated yet. Relies on social engineering or simple dictionary attacks.

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

🛠️ **Fixed?**: **Unknown/Not Explicit**. 📜 **Refs**: CISA Advisory ICSA-26-106-02 issued. 🔗 **Vendor**: Horner Automation website linked. Check for firmware updates or patches.

Q: What if no patch? (Workaround)

🚧 **Workaround**: Enforce strong passwords manually. 🔒 **Network**: Isolate PLCs from public internet. 👥 **Policy**: Implement strict access control lists (ACLs). Monitor for unauthorized login attempts.

Q: Is it urgent? (Priority Suggestion)

⚡ **Urgency**: **HIGH**. 📈 **Priority**: CVSS 7.5 (High). 🏭 **Impact**: Industrial control systems are critical targets. Immediate mitigation recommended to prevent sabotage.

Updated May 06, 2026 CVSS 9.1 · Critical

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Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Weak password policies in Horner Automation software (Cscape, XL7, XL4 PLCs). <br>📉 **Consequences**: Attackers can guess credentials easily. Full control over industrial systems is at risk.…

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Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-521** (Weak Password Requirements). <br>🔍 **Flaw**: Lack of password complexity rules. No account lockout or input limiters. Simple passwords are accepted without restriction.

Q3Who is affected? (Versions/Components)

🏭 **Affected**: Horner Automation products. <br>📦 **Components**: Cscape (Programming Software), XL7 PLC, XL4 PLC. <br>⚠️ **Scope**: Multiple products with similar authentication flaws.

Q4What can hackers do? (Privileges/Data)

💻 **Hackers Can**: Brute-force or guess weak passwords. <br>🔓 **Privileges**: Gain unauthorized network access. <br>📊 **Data**: Full read/write access to PLC logic. Potential for operational disruption or data theft.

Q5Is exploitation threshold high? (Auth/Config)

📉 **Threshold**: **LOW**. <br>🔑 **Auth**: No authentication required to attempt login (PR:N). <br>⚙️ **Config**: Low complexity allows easy guessing. No rate limiting (AC:L).

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

🚫 **Public Exp?**: **No**. <br>📂 **PoCs**: None listed in references. <br>🌐 **Wild Exp**: Unlikely to be automated yet. Relies on social engineering or simple dictionary attacks.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for Horner Automation devices. <br>🧪 **Test**: Attempt login with common weak passwords (admin, 1234). <br>📋 **Audit**: Review password policies in Cscape settings.…

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Q8Is it fixed officially? (Patch/Mitigation)

🛠️ **Fixed?**: **Unknown/Not Explicit**. <br>📜 **Refs**: CISA Advisory ICSA-26-106-02 issued. <br>🔗 **Vendor**: Horner Automation website linked. Check for firmware updates or patches.

Q9What if no patch? (Workaround)

🚧 **Workaround**: Enforce strong passwords manually. <br>🔒 **Network**: Isolate PLCs from public internet. <br>👥 **Policy**: Implement strict access control lists (ACLs). Monitor for unauthorized login attempts.

Q10Is it urgent? (Priority Suggestion)

⚡ **Urgency**: **HIGH**. <br>📈 **Priority**: CVSS 7.5 (High). <br>🏭 **Impact**: Industrial control systems are critical targets. Immediate mitigation recommended to prevent sabotage.

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Vulnerability detail Full AI analysis (login) Horner Automation CWE-521