{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-12T18:50:49.309","vulnerabilities":[{"cve":{"id":"CVE-2021-34570","sourceIdentifier":"info@cert.vde.com","published":"2021-09-27T09:15:07.750","lastModified":"2024-11-21T06:10:43.373","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Multiple Phoenix Contact PLCnext control devices in versions prior to 2021.0.5 LTS are prone to a DoS attack through special crafted JSON requests."},{"lang":"es","value":"Múltiples dispositivos de control Phoenix Contact PLCnext en versiones anteriores a 2021.0.5 LTS, son propensos a un ataque DoS mediante peticiones JSON especialmente diseñadas"}],"metrics":{"cvssMetricV31":[{"source":"info@cert.vde.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:C","baseScore":7.8,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":6.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"info@cert.vde.com","type":"Secondary","description":[{"lang":"en","value":"CWE-20"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:phoenixcontact:plcnext_technology_starterkit_firmware:*:*:*:*:lts:*:*:*","versionEndExcluding":"2021.0.5","matchCriteriaId":"D3A000A0-3E09-4CC2-B55B-02FF141E9032"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:phoenixcontact:plcnext_technology_starterkit:-:*:*:*:*:*:*:*","matchCriteriaId":"12BDD2FE-0D7C-4868-A5E4-B1004A5C217D"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:phoenixcontact:axc_f_2152_starterkit_firmware:*:*:*:*:lts:*:*:*","versionEndExcluding":"2021.0.5","matchCriteriaId":"234711BD-CD61-4A50-9CC7-09619EB68E0B"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:phoenixcontact:axc_f_2152_starterkit:-:*:*:*:*:*:*:*","matchCriteriaId":"079A104B-2016-4830-80C1-3AB969106649"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:phoenixcontact:rfc_4072s_firmware:*:*:*:*:lts:*:*:*","versionEndExcluding":"2021.0.5","matchCriteriaId":"D8AB52B3-C3F7-4900-901D-B90C5D877A9C"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:phoenixcontact:rfc_4072s:-:*:*:*:*:*:*:*","matchCriteriaId":"0BF1EAD1-7C19-4A6E-BF87-EF3F7E526BD6"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:phoenixcontact:axc_f_3152_firmware:*:*:*:*:lts:*:*:*","versionEndExcluding":"2021.0.5","matchCriteriaId":"D4FC9F69-D10F-47AF-A5BA-B7AB46FB3389"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:phoenixcontact:axc_f_3152:-:*:*:*:*:*:*:*","matchCriteriaId":"57424998-4EAB-4682-BFC4-1D2A621514F4"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:phoenixcontact:axc_f_1152_firmware:*:*:*:*:lts:*:*:*","versionEndExcluding":"2021.0.5","matchCriteriaId":"17D8F2FA-C7D4-4D79-9356-4E74D7D84133"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:phoenixcontact:axc_f_1152:-:*:*:*:*:*:*:*","matchCriteriaId":"A2474BD7-C447-4E07-A628-C729E376943D"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:phoenixcontact:axc_f_2152_firmware:*:*:*:*:lts:*:*:*","versionEndExcluding":"2021.0.5","matchCriteriaId":"73852309-933E-476F-865E-BC4B25ABF797"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:phoenixcontact:axc_f_2152:-:*:*:*:*:*:*:*","matchCriteriaId":"AE2E6118-6587-444A-A143-9C3A1E6ED4FD"}]}]}],"references":[{"url":"https://cert.vde.com/en/advisories/VDE-2021-029/","source":"info@cert.vde.com","tags":["Patch","Third Party Advisory"]},{"url":"https://cert.vde.com/en/advisories/VDE-2021-029/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]}]}}]}