What is CVE-2023-3548?

CVE-2023-3548 is a high-severity vulnerability in Johnson Controls Iq Wifi 6, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 8.3/10. Published 2023-07-25.

How severe is CVE-2023-3548?

High severity. CVSS v3 base score is 8.3 out of 10.

Vulnerability in Johnson Controls Iq Wifi 6

CVE-2023-3548

An unauthorized user could gain account access to IQ Wifi 6 versions prior to 2.0.2 by conducting a brute force authentication attack.

Published 2023-07-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.005 (43.9th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

References

www.johnsoncontrols.com/cyber-solutions/security-advisories (Vendor Advisory)
www.cisa.gov/news-events/ics-advisories/icsa-23-206-04 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2023-3548?: CVE-2023-3548 is a high-severity vulnerability in Johnson Controls Iq Wifi 6, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 8.3/10. Published 2023-07-25.
How severe is CVE-2023-3548?: High severity. CVSS v3 base score is 8.3 out of 10.