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Fencer Vulns
high 7.8

CVE-2021-36204 json

Insufficiently Protected Credentials in Metasys

published 2023-01-13 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-22825

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

Under some circumstances an Insufficiently Protected Credentials vulnerability in Johnson Controls Metasys ADS/ADX/OAS 10 versions prior to 10.1.6 and 11 versions prior to 11.0.3 allows API calls to expose credentials in plain text.

Patch / fix

  • Johnson Controls Metasys ADS/ADX/OAS 10.1.6, 11.0.3

Vendor advisories

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

cisa ICSA-23-012-06 updated cvss 7.8

Johnson Controls Metasys

  • Johnson Controls Metasys ADS/ADX/OAS Servers < 10.1.6, < 11.0.3
    affected: mitigation “Metasys ADS/ADX/OAS Version 10.X: update to 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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
19 mo ago

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

  • Johnson Controls Metasys ADS/ADX/OAS

Classification

Weakness
  • CWE-522 Insufficiently Protected Credentials

References

Sources

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.