CVE-2026-21661

AC2000 Uncontrolled Search Path Element

CVSS 8.4 HIGHEPSS 0.1%CWE-427

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.4EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

06 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Uncontrolled Search Path Element vulnerability in JohnsonControls AC2000 on Windows allows Leveraging/Manipulating Configuration File Search Paths. This issue affects AC2000: from 10.6 before release 10, from 11.0 before release 9, from 12 before release 3.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

Affected products

JohnsonControls · AC2000

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References

https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories