{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-54800", "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77", "state": "PUBLISHED", "assignerShortName": "siemens", "dateReserved": "2026-06-16T07:47:12.274Z", "datePublished": "2026-07-09T14:15:53.306Z", "dateUpdated": "2026-07-09T14:45:11.451Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77", "shortName": "siemens", "dateUpdated": "2026-07-09T14:15:53.306Z"}, "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.20), SICORE Base system (All versions < V26.20.0). The affected application ships with a default configuration that disables all OPC UA security mechanisms. This could allow an attacker to gain unauthorized access and control over critical system functions."}], "affected": [{"vendor": "Siemens", "product": "CPCI85 Central Processing/Communication", "versions": [{"status": "affected", "version": "0", "lessThan": "V26.20", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SICORE Base system", "versions": [{"status": "affected", "version": "0", "lessThan": "V26.20.0", "versionType": "custom"}], "defaultStatus": "unknown"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "baseScore": 4.8, "baseSeverity": "MEDIUM"}}, {"cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N", "baseScore": 6.3, "baseSeverity": "MEDIUM"}}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-1188", "description": "CWE-1188: Initialization of a Resource with an Insecure Default", "type": "CWE"}]}], "references": [{"url": "https://cert-portal.siemens.com/productcert/html/ssa-229470.html"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-09T14:44:56.105030Z", "id": "CVE-2026-54800", "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": "2026-07-09T14:45:11.451Z"}}]}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,V26.20)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "matching", "scores": [{"score": 99.0, "source": "matching"}]}, "original": {"product": "CPCI85 Central Processing/Communication", "source": "cna", "vendor": "Siemens"}, "product": "cpci85_central_processing\\/communication", "vendor": "siemens"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,V26.20.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "SICORE Base system", "source": "cna", "vendor": "Siemens"}, "product": "sicore_base_system", "vendor": "siemens"}], "created": "2026-07-09T15:30:05.185270+00:00", "updated": "2026-07-09T15:30:05.185301+00:00", "vendors": ["siemens", "siemens$PRODUCT$cpci85_central_processing\\/communication", "siemens$PRODUCT$sicore_base_system"]}