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VULNERABILITIES

CVE-2025-61736 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Successful exploitation of this vulnerability could result in the product failing to re-establish communication once the certificate expires.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://www.cisa.gov/news-events/ics-advisories/icsa-25-338-04 [email protected]AdvisoryRemedyVendor
https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories [email protected]AdvisoryVendor

Weakness Enumeration

CWE-IDCWE NameSource
CWE-298Improper Validation of Certificate Expiration[email protected]

Affected Products

ProductVersions
Johnson Controls iSTAR eX
All versions

CPE

  • No CPEs found in CPE dictionary for this product.

Remediation

  • No remediation found in references.
Johnson Controls iSTAR Edge
All versions

CPE

  • No CPEs found in CPE dictionary for this product.

Remediation

  • No remediation found in references.
Johnson Controls iSTAR Ultra LT
All versions

CPE

  • cpe:2.3:h:johnsoncontrols:istar_ultra_lt:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
Johnson Controls iSTAR Ultra
All versions

CPE

  • cpe:2.3:o:johnsoncontrols:istar_ultra_firmware:*:*:*:*:*:*:*:*
  • cpe:2.3:h:johnsoncontrols:istar_ultra:*:*:*:*:*:*:*:*

Remediation

  • Workaround:moderate effort

    Download a new host-based certificate for all iSTAR panels simultaneously, resulting in brief system downtime.

  • Mitigation:moderate effort

    Convert encryption mode to TLS 1.3, per cluster. Requires firmware 6.9.0 or higher, and C•CURE 9000 v2.90 SP3 or higher.

Johnson Controls iSTAR Ultra SE
All versions

CPE

  • No CPEs found in CPE dictionary for this product.

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2025-61736
NVD Published Date:
Dec 17, 2025
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2025-61736 Details - Not Deferred