Johnson Controls CEM AC2000 — CVE-2026-21661

Summary

View CSAF Summary Successful exploitation of this vulnerability could allow a standard user to escalate privileges on the host machine. The following versions of Johnson Controls CEM AC2000 are affected: CEM AC2000 12.0 (CVE-2026-21661) CEM AC2000 11.0 (CVE-2026-21661) CEM AC2000 10.6 (CVE-2026-21661) CVSS Vendor Equipment Vulnerabilities v3 8.7 Johnson Controls Inc. Johnson Controls CEM AC2000 Uncontrolled Search…

Product

ICS Advisory

What to do

General, cautious steps (verify details in the official source):

• Review exposure and plan remediation based on risk and environment.
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

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