{"affected": [{"affectedData": [{"product": "AXC F 1152 (1151412)", "vendor": "Phoenix Contact", "versions": [{"lessThan": "2021.0 LTS", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "AXC F 2152 (2404267)", "vendor": "Phoenix Contact", "versions": [{"lessThan": "2021.0 LTS", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "AXC F 3152 (1069208)", "vendor": "Phoenix Contact", "versions": [{"lessThan": "2021.0 LTS", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "RFC 4072S (1051328", "vendor": "Phoenix Contact", "versions": [{"lessThan": "2021.0 LTS", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "AXC F 2152 Starterkit (1046568)", "vendor": "Phoenix Contact", "versions": [{"lessThan": "2021.0 LTS", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "PLCnext Technology Starterkit (1188165)", "vendor": "Phoenix Contact", "versions": [{"lessThan": "2021.0 LTS", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "info@cert.vde.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*", "matchCriteriaId": "8233F8C3-5D10-4FD6-B192-39535B7B464C", "versionEndExcluding": "2021.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:phoenixcontact:axc_f_1152:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2474BD7-C447-4E07-A628-C729E376943D", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*", "matchCriteriaId": "8233F8C3-5D10-4FD6-B192-39535B7B464C", "versionEndExcluding": "2021.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:phoenixcontact:axc_f_2152:-:*:*:*:*:*:*:*", "matchCriteriaId": "AE2E6118-6587-444A-A143-9C3A1E6ED4FD", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*", "matchCriteriaId": "8233F8C3-5D10-4FD6-B192-39535B7B464C", "versionEndExcluding": "2021.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:phoenixcontact:axc_f_3152:-:*:*:*:*:*:*:*", "matchCriteriaId": "57424998-4EAB-4682-BFC4-1D2A621514F4", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*", "matchCriteriaId": "8233F8C3-5D10-4FD6-B192-39535B7B464C", "versionEndExcluding": "2021.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:phoenixcontact:rfc_4072s:-:*:*:*:*:*:*:*", "matchCriteriaId": "0BF1EAD1-7C19-4A6E-BF87-EF3F7E526BD6", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*", "matchCriteriaId": "8233F8C3-5D10-4FD6-B192-39535B7B464C", "versionEndExcluding": "2021.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:phoenixcontact:axc_f_2152_starterkit:-:*:*:*:*:*:*:*", "matchCriteriaId": "079A104B-2016-4830-80C1-3AB969106649", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*", "matchCriteriaId": "8233F8C3-5D10-4FD6-B192-39535B7B464C", "versionEndExcluding": "2021.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:phoenixcontact:plcnext_technology_starterkit:-:*:*:*:*:*:*:*", "matchCriteriaId": "12BDD2FE-0D7C-4868-A5E4-B1004A5C217D", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS a specially crafted LLDP packet may lead to a high system load in the PROFINET stack. An attacker can cause failure of system services or a complete reboot."}, {"lang": "es", "value": "En Phoenix Contact PLCnext Control Devices versiones anteriores a 2021.0 LTS, un paquete LLDP especialmente dise\u00f1ado puede conllevar a una alta carga del sistema en la pila PROFINET. Un atacante puede causar un fallo en los servicios del sistema o un reinicio completo"}], "id": "CVE-2020-12521", "lastModified": "2026-06-17T02:51:57.807", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 6.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 6.5, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "info@cert.vde.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-12-17T23:15:13.137", "references": [{"source": "info@cert.vde.com", "tags": ["Third Party Advisory"], "url": "https://cert.vde.com/en-us/advisories/vde-2020-049"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://cert.vde.com/en-us/advisories/vde-2020-049"}], "sourceIdentifier": "info@cert.vde.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "info@cert.vde.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}
CVE record
NVD configurations
Red Hat packages
No data
OpenCVE enrichment
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EUVD