What is CVE-2021-36207?

CVE-2021-36207 is a high-severity vulnerability in Johnson Controls Metasys Ads/adx/oas Server, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2022-04-29.

How severe is CVE-2021-36207?

High severity. CVSS v3 base score is 8.8 out of 10.

Privilege escalation in Johnson Controls Metasys Ads/adx/oas Server

CVE-2021-36207

Under certain circumstances improper privilege management in Metasys ADS/ADX/OAS servers versions 10 and 11 could allow an authenticated user to elevate their privileges to administrator.

Vulnerability class: Privilege Escalation

Published 2022-04-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (60.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000

Affected products

Johnson Controls Metasys Ads/adx/oas Server — versions All 10 versions, All 11 versions
Johnsoncontrols Metasys Application And Data Server
Johnsoncontrols Metasys Extended Application And Data Server
Johnsoncontrols Metasys Open Application Server

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

www.johnsoncontrols.com/cyber-solutions/security-advisories (Vendor Advisory)
www.cisa.gov/uscert/ics/advisories/icsa-22-118-01 (US Government Resource, Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2021-36207?: CVE-2021-36207 is a high-severity vulnerability in Johnson Controls Metasys Ads/adx/oas Server, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2022-04-29.
How severe is CVE-2021-36207?: High severity. CVSS v3 base score is 8.8 out of 10.