Skip to main content
VulnerabilityPublished

CVE-2025-61739: Johnson Controls IQ Panels2, 2+, IQHub, IQPanel 4, PowerG · Reusing a Nonce, Key pair in encryption

Affects Johnson Controls IQ Panels2, 2+, IQHub, IQPanel 4, PowerGSource CVE Database V5

0

Not known to be exploited · CVSS 7.2 High.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 4.0 base score
7.2High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

  1. Johnson Controls should prioritize releasing firmware or software updates that enforce unique nonce generation per encryption session to eliminate nonce reuse.
  2. Until patches are available, organizations should segment networks to isolate IQ Panels and related devices from broader corporate networks, limiting attacker access to adjacent network segments only.
  3. Implement strict access controls and monitoring on networks hosting these devices to detect anomalous traffic patterns indicative of replay attacks or decryption attempts.
  4. Employ network encryption and VPNs to protect communications to and from these devices, reducing the risk of packet capture.
  5. Regularly audit device configurations and logs for signs of tampering or unauthorized access.
  6. Coordinate with Johnson Controls support for any available interim mitigations or recommended configurations.
  7. Educate security teams about this vulnerability to ensure rapid detection and response to potential exploitation attempts.
  8. Consider temporary physical security enhancements to compensate for potential electronic control weaknesses.

Description

Due to Nonce reuse, attackers can perform reply attack or decrypt captured packets.

References

Community reviews

Loading reviews…