OS command injection in Johnson Control iSTAR Ultra, iSTAR Ultra SE, iSTAR Ultra G2…
Priority MEDIUM 45CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
Successful exploitation of these vulnerabilities could allow an attacker to modify firmware and gain full access to the device.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00289 21st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Johnson Control | iSTAR Ultra, iSTAR Ultra SE, iSTAR Ultra G2, iSTAR Ultra G2 SE, iSTAR Edge G2 | up to 6.9.3 | — | No fix listed | CNA |
- iSTAR Ultra, iSTAR Ultra SE, iSTAR Ultra G2, iSTAR Ultra G2 SE, iSTAR Edge G2 VendorJohnson Control Affected up to 6.9.3 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-43873
- 2026-10-03 Alias added: GHSA-h6qm-9g23-f84m
References
More Johnson Control vulnerabilities
- TI-2026-17438 C-CURE 9000 and Victor application server - Deserialization of Untrusted Data CVSS 4.0HIGH 8.7
Sources
- CVE-2025-43873 · CVE Program
- CVE-2025-43873 · NVD
- FIRST EPSS
- GHSA-h6qm-9g23-f84m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences