Is CVE-2021-36200 in the CISA KEV catalog?

No. CVE-2021-36200 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-36200?

CVE-2021-36200 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2021-36200?

CVE-2021-36200 has an EPSS score of 0.58% (44th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-36200?

Upgrade metasys application and data server to 11.0.2 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2021-36200

MEDIUM

5.3

CVSS v3

NVD

Description

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.

CWE-306Missing Authentication for Critical Function

How to fix

Remediation Available

metasys application and data serverNVD

Affected:>= 11.0, < 11.0.2Fixed in:11.0.2CVE-2021-36200derived from NVD

metasys extended application and data serverNVD

Affected:>= 11.0, < 11.0.2Fixed in:11.0.2CVE-2021-36200derived from NVD

metasys open application serverNVD

Affected:>= 11.0, < 11.0.2Fixed in:11.0.2CVE-2021-36200derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

0.58%probability of exploitation in 30 days

44thpercentile

Moderate risk: more likely to be exploited than 44% of all known CVEs.

References

Vendor Advisory1

johnsoncontrols.com

Mitigation1

cisa.gov

Related Vulnerabilities

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-10271	High	7.5	100%	KEV + Ransom	-
CVE-2023-42793	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2025-3248	Critical	9.8	100%	KEV	Fix
CVE-2022-1388	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2021-37415	Critical	9.8	100%	KEV	-
CVE-2023-21839	High	7.5	100%	KEV	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.