What is CVE-2022-21936?

CVE-2022-21936 is a high-severity vulnerability in Johnsoncontrols Metasys Extended Application And Data Server, classified under Improper Authentication. CVSS score: 8.1/10. Published 2022-10-07.

How severe is CVE-2022-21936?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Johnsoncontrols Metasys Extended Application And Data Server

CVE-2022-21936

On Metasys ADX Server version 12.0 running MVE, an Active Directory user could execute validated actions without providing a valid password when using MVE SMP UI.

Vulnerability class: Broken Authentication

Published 2022-10-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (43.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.7% 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-287 — Improper Authentication

References

www.johnsoncontrols.com/cyber-solutions/security-advisories (Vendor Advisory)
www.cisa.gov/uscert/ics/advisories/icsa-22-277-01 (US Government Resource, Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2022-21936?: CVE-2022-21936 is a high-severity vulnerability in Johnsoncontrols Metasys Extended Application And Data Server, classified under Improper Authentication. CVSS score: 8.1/10. Published 2022-10-07.
How severe is CVE-2022-21936?: High severity. CVSS v3 base score is 8.1 out of 10.