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Fencer Vulns
high 7.2

CVE-2025-26379 json

Johnson Controls IQ Panels2, 2+, IQHub, IQPanel 4, PowerG use of Cryptographically Weak Pseudo-Random Number Generator

published 2025-12-22 10 mo ago modified 2026-10-14 25 d ago also EUVD-2025-204711

cvss
7.2
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits
0
none known

Summary

Use of a weak pseudo-random number generator, which may allow an attacker to read or inject encrypted PowerG packets.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-25-350-02 updated cvss 7.6

Johnson Controls PowerG, IQPanel and IQHub (Update A)

  • Johnson Controls Inc. IQHub Johnson Controls Inc. IQPanel 2 Johnson Controls Inc. IQPanel 2+
    affected: mitigation “Johnson Controls recommends the following:” johnsoncontrols.com
  • Johnson Controls Inc. IQPanel 4 <4.6.1
    affected: fixed in 4.6.1, mitigation “Johnson Controls recommends the following:” johnsoncontrols.com
  • Johnson Controls Inc. PowerG <=53.02
    affected: vendor fix, mitigation “Johnson Controls recommends the following:” johnsoncontrols.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
10 mo ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 7.2 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
CNA 4.0 7.2 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

Affected products

  • Johnson Controls IQ Panels2, 2+, IQHub, IQPanel 4, PowerG

Classification

Weakness
  • CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.