Show plain JSON{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:unified-automation:.net_based_opc_ua_client\\/server_sdk:*:*:*:*:*:*:*:*", "matchCriteriaId": "72FFADD0-F648-492C-9A45-1456EEDAAD06", "versionEndIncluding": "3.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*", "matchCriteriaId": "E039CE1F-B988-4741-AE2E-5B36E2AF9688", "vulnerable": false}, {"criteria": "cpe:2.3:a:microsoft:.net_framework:4.0:*:*:*:*:*:*:*", "matchCriteriaId": "792B417F-96A0-4E9D-9E79-5D7F982E2225", "vulnerable": false}, {"criteria": "cpe:2.3:a:microsoft:.net_framework:4.5:*:*:*:*:*:*:*", "matchCriteriaId": "61FAD9EE-FA7F-4B39-8A9B-AFFAEC8BF214", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "descriptions": [{"lang": "en", "value": "Products with Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versions V3.0.7 and prior (.NET 4.5, 4.0, and 3.5 Framework versions only) are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow."}, {"lang": "es", "value": "Productos con el programa Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versiones V3.0.7 y anteriores (solo versiones de .NET 4.5, 4.0 y 3.5 Framework) son vulnerables a una recursividad no controlada, que puede permitir a un atacante desencadenar un desbordamiento de pila"}], "id": "CVE-2021-27434", "lastModified": "2024-11-21T05:57:58.987", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "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": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-05-20T14:15:07.767", "references": [{"source": "ics-cert@hq.dhs.gov", "tags": ["Third Party Advisory", "US Government Resource"], "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-133-04"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "US Government Resource"], "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-133-04"}], "sourceIdentifier": "ics-cert@hq.dhs.gov", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-674"}], "source": "nvd@nist.gov", "type": "Primary"}]}