{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-61736", "assignerOrgId": "7281d04a-a537-43df-bfb4-fa4110af9d01", "state": "PUBLISHED", "assignerShortName": "jci", "dateReserved": "2025-09-30T15:51:17.096Z", "datePublished": "2025-12-17T12:36:24.178Z", "dateUpdated": "2025-12-17T15:09:46.607Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "affected", "product": "iSTAReX, iSTAR Edge, iSTAR Ultra LT, iSTAR Ultra , iSTAR Ultra SE", "vendor": "Johnson Controls", "versions": [{"status": "affected", "version": "iSTAR All versions prior to TLS 1.2"}]}], "datePublic": "2025-12-04T12:30:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\">Successful exploitation of this vulnerability could result in the product failing to re-establish communication once the certificate expires.</span>"}], "value": "Successful exploitation of this vulnerability could result in the product failing to re-establish communication once the certificate expires."}], "impacts": [{"capecId": "CAPEC-94", "descriptions": [{"lang": "en", "value": "CAPEC-94: Adversary in the Middle (AiTM)"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "baseScore": 7.1, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-298", "description": "CWE-298-Improper Validation of certificate expiration", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "7281d04a-a537-43df-bfb4-fa4110af9d01", "shortName": "jci", "dateUpdated": "2025-12-17T12:36:24.178Z"}, "references": [{"url": "https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories"}, {"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-338-04"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Johnson Controls recommends the following mitigations:</p><p>Host-based certificates using TLS 1.2:</p><ul><li>Quickest solution</li><li>No Upgrade required to specific C\u2022CURE or iSTAR software/firmware versions</li><li>Requires downloading a new certificate to all iSTAR panels simultaneously, resulting in a brief system downtime</li></ul><p>Convert encryption mode to TLS 1.3, per cluster:</p><ul><li>Requires firmware 6.9.0 or higher, and C\u2022CURE 9000 v2.90 SP3 or higher</li><li>Enables phased implementation by cluster, minimizing disruption</li><li>Note: TLS 1.3 is not supported on iSTAR eX, iSTAR Edge, and iSTAR Ultra LT panels</li></ul><p>Upgrade legacy panels to new G2 hardware:</p><ul><li>Recommended for smaller systems due to time constraints</li><li>Applies primarily to iSTAR eX, iSTAR Edge, and iSTAR LT panels</li></ul>"}], "value": "Johnson Controls recommends the following mitigations:\n\nHost-based certificates using TLS 1.2:\n\n * Quickest solution\n * No Upgrade required to specific C\u2022CURE or iSTAR software/firmware versions\n * Requires downloading a new certificate to all iSTAR panels simultaneously, resulting in a brief system downtime\n\n\nConvert encryption mode to TLS 1.3, per cluster:\n\n * Requires firmware 6.9.0 or higher, and C\u2022CURE 9000 v2.90 SP3 or higher\n * Enables phased implementation by cluster, minimizing disruption\n * Note: TLS 1.3 is not supported on iSTAR eX, iSTAR Edge, and iSTAR Ultra LT panels\n\n\nUpgrade legacy panels to new G2 hardware:\n\n * Recommended for smaller systems due to time constraints\n * Applies primarily to iSTAR eX, iSTAR Edge, and iSTAR LT panels"}], "source": {"discovery": "UNKNOWN"}, "title": "iSTAR- Improper Validation of Certificate Expiration", "x_generator": {"engine": "Vulnogram 0.5.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-12-17T15:07:21.695642Z", "id": "CVE-2025-61736", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-12-17T15:09:46.607Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Successful exploitation of this vulnerability could result in the product failing to re-establish communication once the certificate expires."}], "id": "CVE-2025-61736", "lastModified": "2025-12-17T13:15:58.217", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "productsecurity@jci.com", "type": "Secondary"}]}, "published": "2025-12-17T13:15:58.217", "references": [{"source": "productsecurity@jci.com", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-338-04"}, {"source": "productsecurity@jci.com", "url": "https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories"}], "sourceIdentifier": "productsecurity@jci.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-298"}], "source": "productsecurity@jci.com", "type": "Secondary"}]}

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