High severity · published Dec 22, 2025
CVE-2025-26379
Johnson Controls IQ Panels2, 2+, IQHub, IQPanel 4, PowerG use of Cryptographically Weak Pseudo-Random Number Generator
7.2
CVSS
0.2%
EPSS
No
On KEV
Description
Use of a weak pseudo-random number generator, which may allow an attacker to read or inject encrypted PowerG packets.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IP
IQ Panels2, 2+, IQHub, IQPanel 4, PowerG · Johnson Controls
IQ Panels2 through 2; IQ Panel 2+ through 2+; IQHub; IQPanel 4 through 4.6.0; PowerG through 53.02 · source: vendor
Affected product
IP
IQ Panels2, 2+, IQHub, IQPanel 4, PowerG
Johnson Controls
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-26379
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-26379
www.cisa.gov
https://www.cisa.gov/news-events/ics-advisories/icsa-25-350-02
www.johnsoncontrols.com
https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories
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Johnson Controls IQ Panels2, 2+, IQHub, IQPanel 4, PowerG reusing a nonce, key pair in encryption
