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Vulnerability intelligence

CVE-2026-21661

CWE-427

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 Score
—
High
EPSS — Exploit Probability
0.1%
Riskier than 1% of all CVEs
Exploitation
Not in CISA KEV
No federal exploitation record
Remediation
unknown
Check vendor advisories
NVD entry

1 article across 1 outlet · first covered May 5, 2026 · latest May 5, 2026

Coverage timeline