CVE-2026-28253

A Memory Allocation with Excessive Size Value vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge could allow an unauthenticated attacker to cause a denial-of-service condition

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.cisa.gov/news-events/ics-advisories/icsa-26-071-01	Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:trane:tracer_sc_firmware::::::::
	cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack1::::::
	cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack2::::::
	cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack3::::::
	cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack4::::::
	cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack5::::::
	cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack6::::::

cpe:2.3:h:trane:tracer_sc:*:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:trane:tracer_sc\+_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:trane:tracer_sc\+:*:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:a:trane:tracer_concierge:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-12 18:16

Updated : 2026-03-27 16:24

NVD link : CVE-2026-28253

Mitre link : CVE-2026-28253

CVE.ORG link : CVE-2026-28253

JSON object : View

Products Affected

trane

tracer_concierge
tracer_sc\+
tracer_sc\+_firmware
tracer_sc
tracer_sc_firmware

CWE

CWE-789

Memory Allocation with Excessive Size Value

{"id": "CVE-2026-28253", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "ics-cert@hq.dhs.gov", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-03-12T18:16:23.370", "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-071-01", "tags": ["Third Party Advisory", "US Government Resource"], "source": "ics-cert@hq.dhs.gov"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "ics-cert@hq.dhs.gov", "description": [{"lang": "en", "value": "CWE-789"}]}], "descriptions": [{"lang": "en", "value": "A Memory Allocation with Excessive Size Value vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge could allow an unauthenticated attacker to cause a denial-of-service condition"}, {"lang": "es", "value": "Una vulnerabilidad de Asignaci\u00f3n de Memoria con Valor de Tama\u00f1o Excesivo en Trane Tracer SC, Tracer SC+ y Tracer Concierge podr\u00eda permitir a un atacante no autenticado causar una condici\u00f3n de denegaci\u00f3n de servicio."}], "lastModified": "2026-03-27T16:24:06.553", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:trane:tracer_sc_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BBD8A909-6B7C-43B6-A3A0-FD48BD3D2C18", "versionEndIncluding": "4.4"}, {"criteria": "cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "43AD695C-9ACA-4BC4-9450-54B0A3D29B54"}, {"criteria": "cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B38311B5-C8E8-4677-9EB5-1FF5A4913ED8"}, {"criteria": "cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "85891146-8A17-4745-8909-97F0999E7973"}, {"criteria": "cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9F2D9C28-3AA6-44BF-A10A-E07B291B9A7E"}, {"criteria": "cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "55728992-1027-4127-9373-B387D895135A"}, {"criteria": "cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1E07D9C2-BD89-4819-8F51-C4E8F3D46678"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:trane:tracer_sc:*:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "8588A8A1-256D-4A24-9911-B0EE946F34EE"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:trane:tracer_sc\\+_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ED7923B0-A1FF-4A1E-839A-004FBE838730", "versionEndExcluding": "6.3.2310"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:trane:tracer_sc\\+:*:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "0B249F8B-02B1-45F6-886F-6AA76CBBFFFC"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:trane:tracer_concierge:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E29DD1A7-FA40-440B-8B63-10939823234B", "versionEndExcluding": "6.3.2310"}], "operator": "OR"}]}], "sourceIdentifier": "ics-cert@hq.dhs.gov"}