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CVE-2026-3611 β€” AI Deep Analysis Summary

CVSS 10.0 Β· Critical

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Honeywell IQ4x controllers have a critical **Access Control Error**. πŸ“‰ **Consequences**: Attackers can create **admin accounts** remotely.…

Q2Root Cause? (CWE/Flaw)

πŸ›‘οΈ **Root Cause**: **CWE-306** (Missing Authentication for Critical Function). πŸ” **Flaw**: Default configuration **fails to enable authentication**. The system trusts unverified requests by default.

Q3Who is affected? (Versions/Components)

🏒 **Affected**: **Honeywell IQ4x** series network controllers. πŸ“¦ **Product**: Specifically noted as **IQ4E** in the data. 🌍 **Vendor**: Honeywell (USA).

Q4What can hackers do? (Privileges/Data)

πŸ’€ **Hackers Can**: Create new accounts with **full administrative privileges**. πŸ“Š **Data Impact**: High confidentiality & integrity loss. πŸ—οΈ **Control**: Full command over building systems (lights, doors, climate).

Q5Is exploitation threshold high? (Auth/Config)

⚑ **Threshold**: **LOW**. 🌐 **Network**: Attack Vector is **Network** (Remote). πŸ”‘ **Auth**: **None** required (PR:N). 🧠 **Complexity**: **Low** (AC:L). No user interaction needed (UI:N).

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

🚫 **Public Exploit**: **No**. The `pocs` array is empty. πŸ“œ **References**: Only vendor contact and CISA advisories are listed. No GitHub PoC or wild exploit code found in data.

Q7How to self-check? (Features/Scanning)

πŸ” **Self-Check**: Scan for **Honeywell IQ4x/IQ4E** devices on the network. πŸ§ͺ **Test**: Attempt to access admin endpoints **without credentials**.…

Q8Is it fixed officially? (Patch/Mitigation)

πŸ”§ **Official Fix**: Patch status not explicitly detailed in data. πŸ“’ **Action**: Contact **Honeywell** directly via their official website. πŸ“‹ **Advisory**: Refer to **CISA ICSA-26-069-03** for official guidance.

Q9What if no patch? (Workaround)

πŸ›‘ **Workaround**: **Enable Authentication** immediately if configurable. 🚧 **Network**: Isolate IQ4x controllers from untrusted networks. πŸ›‘οΈ **Monitor**: Watch for unexpected admin account creation logs.

Q10Is it urgent? (Priority Suggestion)

πŸ”₯ **Urgency**: **CRITICAL**. πŸ“ˆ **CVSS**: **9.1** (High). 🚨 **Risk**: Remote, unauthenticated, full system compromise. ⏳ **Priority**: Patch or mitigate **IMMEDIATELY**.