What is CVE-2021-36206?

CVE-2021-36206 is a critical-severity vulnerability in Johnson Controls Cevas, classified under Cross-site Scripting. CVSS score: 10.0/10. Published 2022-10-28.

How severe is CVE-2021-36206?

Critical severity. CVSS v3 base score is 10.0 out of 10.

XSS in Johnson Controls Cevas

CVE-2021-36206

All versions of CEVAS prior to 1.01.46 do not sufficiently validate user-controllable input and could allow a user to bypass authentication and retrieve data with specially crafted SQL queries.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-10-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (36.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Johnson Controls Cevas — versions all versions prior to 1.01.46
Johnsoncontrols Cevas

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.johnsoncontrols.com/cyber-solutions/security-advisories (Vendor Advisory)
www.cisa.gov/uscert/ics/advisories/icsa-22-298-05 (US Government Resource, Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2021-36206?: CVE-2021-36206 is a critical-severity vulnerability in Johnson Controls Cevas, classified under Cross-site Scripting. CVSS score: 10.0/10. Published 2022-10-28.
How severe is CVE-2021-36206?: Critical severity. CVSS v3 base score is 10.0 out of 10.