CVE-2021-40873

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:softing:datafeed_opc_suite:*:*:*:*:*:*:*:*", "matchCriteriaId": "9C103B04-ACCD-418F-8FCA-A1E6D3F65765", "versionEndExcluding": "5.18", "vulnerable": true}, {"criteria": "cpe:2.3:a:softing:edgeconnector:*:*:*:*:*:*:*:*", "matchCriteriaId": "1CA275F1-BAF9-4DF0-9A7D-72803927AEDB", "versionEndIncluding": "2.31", "vulnerable": true}, {"criteria": "cpe:2.3:a:softing:opc:*:*:*:*:*:*:*:*", "matchCriteriaId": "7ABCF586-B1F5-44A4-BE3C-C1FADC36FAC2", "versionEndExcluding": "5.66", "vulnerable": true}, {"criteria": "cpe:2.3:a:softing:secure_integration_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "788D765F-4A20-49CC-BC97-483E69AB63C7", "versionEndIncluding": "1.22", "vulnerable": true}, {"criteria": "cpe:2.3:a:softing:th_scope:*:*:*:*:*:*:*:*", "matchCriteriaId": "A095128F-37B7-4BA4-AA82-F9B0E33E6325", "versionStartIncluding": "3.5", "vulnerable": true}, {"criteria": "cpe:2.3:a:softing:uagates:*:*:*:*:*:*:*:*", "matchCriteriaId": "0C6C10BB-64B0-49F1-984E-F50996B3BFBF", "versionEndExcluding": "1.73", "vulnerable": true}, {"criteria": "cpe:2.3:a:softing:uatoolkit_embedded:*:*:*:*:*:*:*:*", "matchCriteriaId": "E6CEDE30-1C5B-45B0-B4E9-A7A42485C03E", "versionEndExcluding": "1.40", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Softing Industrial Automation OPC UA C++ SDK before 5.66, and uaToolkit Embedded before 1.40. Remote attackers to cause a denial of service (DoS) by sending crafted messages to a client or server. The server process may crash unexpectedly because of a double free, and must be restarted."}, {"lang": "es", "value": "Se ha detectado un problema en Softing Industrial Automation OPC UA C++ SDK versiones anteriores a 5.66, y en uaToolkit Embedded versiones anteriores a 1.40. Unos atacantes remotos pueden causar una denegaci\u00f3n de servicio (DoS) mediante el env\u00edo de mensajes dise\u00f1ados a un cliente o servidor. El proceso del servidor puede bloquearse inesperadamente debido a una doble liberaci\u00f3n, y debe ser reiniciado"}], "id": "CVE-2021-40873", "lastModified": "2026-06-17T04:07:34.787", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-11-10T23:15:08.350", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://industrial.softing.com/"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://industrial.softing.com/fileadmin/sof-files/pdf/ia/support/Security_Bulletin_CVE-2021-40873.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://industrial.softing.com/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://industrial.softing.com/fileadmin/sof-files/pdf/ia/support/Security_Bulletin_CVE-2021-40873.pdf"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-415"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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