Communication Failure Vulnerability in Johnson Controls Products
CVE-2025-61736

7.1HIGH

Key Information:

Vendor

Johnson Controls

Status
Istarex, Istar Edge, Istar Ultra Lt, Istar Ultra , Istar Ultra Se
Vendor
CVE Published:
17 December 2025

What is CVE-2025-61736?

This vulnerability allows for the disruption of communication in Johnson Controls products when the device's security certificate expires. The failure to re-establish communication post-expiration can lead to significant operational issues, impacting the overall performance and reliability of the affected devices. Immediate attention to certificate management and renewal processes is crucial in mitigating this risk.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

iSTAReX, iSTAR Edge, iSTAR Ultra LT, iSTAR Ultra , iSTAR Ultra SE iSTAR All versions prior to TLS 1.2

References

https://www.johnsoncontrols.com/trust-center/cybersecurit...
https://www.cisa.gov/news-events/ics-advisories/icsa-25-3...

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.