CVE-2025-61739
Johnson Controls IQ Panels2, 2+, IQHub, IQPanel 4, PowerG reusing a nonce, key pair in encryption
Due to Nonce reuse, attackers can perform reply attack or decrypt captured packets.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Johnson Controls IQ Panels2, 2+, IQHub, IQPanel 4, PowerG reusing a nonce, key pair in encryption
Due to Nonce reuse, attackers can perform reply attack or decrypt captured packets.
- Record
CVE-2025-61739- CVSS 4.0
- 7.2 High
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 - Weakness
- CWE-323
- Updated
- 2026-11-02
EUVDEUVD-2025-204703
Due to Nonce reuse, attackers can perform reply attack or decrypt captured packets.
- Record
EUVD-2025-204703- CVSS 4.0
- 7.2 High
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-6635-2fcv-crph
Due to Nonce reuse, attackers can perform reply attack or decrypt captured packets.
Due to Nonce reuse, attackers can perform reply attack or decrypt captured packets.
- Record
GHSA-6635-2fcv-crph- CVSS 4.0
- 7.2 High
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-323
- Updated
- 2026-11-02
NVD
Due to Nonce reuse, attackers can perform reply attack or decrypt captured packets.
- Record
CVE-2025-61739- CVSS 4.0
- 7.2 High
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-323
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-61739 is a high vulnerability (CVSS 7.2) in Johnson Controls Iq Panels2, 2+, Iqhub, Iqpanel 4, Powerg, published December 22, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 8th percentile. No source names a fixed version.