CVE-2021-36205: Johnsoncontrols Metasys Application And Data Server

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

Under certain circumstances the session token is not cleared on logout.

Affected products

• Johnsoncontrols Metasys Application And Data Server: from 10.0, before 10.1.5 (fixed in 10.1.5); from 11.0, before 11.0.2 (fixed in 11.0.2)
• Johnsoncontrols Metasys Extended Application And Data Server: from 10.0, before 10.1.5 (fixed in 10.1.5); from 11.0, before 11.0.2 (fixed in 11.0.2)
• Johnsoncontrols Metasys Open Application Server: from 10.0, before 10.1.5 (fixed in 10.1.5); from 11.0, before 11.0.2 (fixed in 11.0.2)

Published 2022-04-15. Last modified 2026-06-17.