CVE-2025-61739 Johnson Controls Inc. CVE debrief

Who should care

Organizations using Johnson Controls PowerG, IQPanel, or IQHub products should care most, especially teams managing wireless device enrollment/pairing, installers, integrators, and operators with legacy IQ Panel 2 / IQ Panel 2+ / IQ Hub deployments.

Technical summary

The CISA CSAF advisory identifies nonce reuse as the underlying issue and maps it to CVSS 3.1 AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L (7.6, High). The practical impact described by the advisory is that an attacker on the relevant adjacent wireless path may be able to replay captured packets or decrypt traffic. CISA’s Update A also added mitigation details and updated the vendor advisory link.

Defensive priority

High priority for environments that use the affected Johnson Controls products, with extra urgency where wireless enrollment or pairing is still in use and where legacy hardware remains deployed. Because the attack vector is adjacent and requires no privileges or user interaction, remediation should be planned promptly.

Recommended defensive actions

• Update IQPanel 4 to version 4.6.1/4.6.1i or later before enrolling devices.
• If devices support PowerG+, use PowerG v53.05 or later.
• Ensure only trusted devices are on the wireless network.
• During installation or enrollment, enter the PIN code in the PIN Code field on the sensor enrollment screen.
• Limit installation/pairing/enrollment to authorized company personnel or integrators only.
• If replacing a PowerG device, consider replacing end-of-life IQ Panel 2, IQ Panel 2+, and IQ Hub systems with IQ Panel 4 running firmware 4.6.1 or greater.
• Review Johnson Controls Product Security Advisory JCI-PSA-2025-01 v2 for detailed mitigation instructions.
• Apply general CISA ICS recommended practices and trust-center guidance for industrial control systems.

Evidence notes

CISA’s CSAF advisory (ICSA-25-350-02 / CVE-2025-61739) states the affected product is vulnerable due to nonce reuse, which may allow replay attacks or decryption of captured packets. The source metadata lists affected products as PowerG, IQHub, IQPanel 2, IQPanel 2+, and IQPanel 4, and records the CVSS vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L. The advisory revision history shows Update A on 2026-03-05 added mitigation details and updated the vendor advisory link.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.