CVE-2021-36207Network attack vector

Authenticated elevation to administrator

Published Apr 29, 2022 · Updated Sep 17, 2024

Improper privilege management in Johnson Controls Metasys ADS/ADX/OAS 10 and 11 allows remote authenticated users to become administrators. Johnson Controls has not disclosed the affected privilege-management locus or the operation that incorrectly grants the Administrator role. Exploitation requires an authenticated network session and grants administrative control over the affected building-automation server.

CVSS severity8.8
High
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege management in Johnson Controls Metasys ADS/ADX/OAS 10 and 11 allows remote authenticated users to become administrators. Johnson Controls has not disclosed the affected privilege-management locus or the operation that incorrectly grants the Administrator role. Exploitation requires an authenticated network session and grants administrative control over the affected building-automation server.

The record

CVE
CVE-2021-36207
Published
Apr 29, 2022
Updated
Sep 17, 2024
Vendor
Johnson Controls
Product
Metasys
Classifications
CWE-269, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 29, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All 10 versions <10.1.5
  2. Affected versionversion=All 11 versions <11.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Johnson Controls · Metasysversion=All 10 versions <10.1.5; version=All 11 versions <11.0.2

Published CVSS scores

8.8Johnson ControlsCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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