Metasys ADS/ADX/OAS with MUI

published 2022-07-22 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-22821

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits: 0; none known

Under certain circumstances an unauthenticated user could access the the web API for Metasys ADS/ADX/OAS 10 versions prior to 10.1.6 and 11 versions prior to 11.0.2 and enumerate users.

Patch / fix

fixed in 1

Johnson Controls Metasys ADS/ADX/OAS server 10.1.6, 11.0.2

Vendor advisories

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

cisa ICSA-22-202-02 updated 2022-07-21 cvss 5.3

Johnson Controls Metasys ADS, ADX, OAS

Johnson Controls Inc Johnson Controls Metasys ADS ADX OAS with MUI 11, 10
affected: mitigation “Metasys ADS/ADX/OAS 10: Update with patch 10.1.6” 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

Exploit prediction

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

Johnson Controls Metasys ADS/ADX/OAS server

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality

References

johnsoncontrols.com /cyber-solutions/security-advisories
vendor-advisory
cisa.gov /uscert/ics/advisories/icsa-22-202-02
third-party-advisory, mitigation, us-government-resource

Sources

CVE List CVE-2021-36200
NVD CVE-2021-36200

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.

Summary