High 8.7Published Dec 24, 2025

CVE-2025-43876iSTAR Ultra, Ultra SE, Ultra G2, Ultra G2 SE, iSTAR Edge G2 - Authenticated web application command injection - get8021xSettings

Updated under an hour ago (Oct 26, 2026, 10:40 AM ET)

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It affects Johnson Controls iSTAR Ultra, iSTAR Ultra SE and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Johnson Controls iSTAR Ultra, iSTAR Ultra SE

Exploited in the last 30 days

Under certain circumstances a successful exploitation could result in access to the device.

CVSS: 8.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-78
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: jci
NVD analysis: Deferred
Record last updated: Dec 24, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Johnson Controls iSTAR Ultra, iSTAR Ultra SE johnson_controls:istar_ultra_istar_ultra_se (from the name)	through 6.9.7	CNA record
Johnson Controls iSTAR Ultra G2, iSTAR Ultra G2 SE, iSTAR Edge G2 johnson_controls:istar_ultra_g2_istar_ultra_g2_se_istar_edge_g2 (from the name)	through 6.9.2	CNA record

References

https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories
https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-01

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.