{"affected":[{"affectedData":[{"product":"WAGO PFC200","vendor":"Wago","versions":[{"status":"affected","version":"Firmware version 03.02.02(14)"}]}],"source":"talos-cna@cisco.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:wago:pfc200_firmware:03.02.02\\(14\\):*:*:*:*:*:*:*","matchCriteriaId":"6274B67D-C65B-4834-9DB5-6FB3D0ADD3A9","vulnerable":true}],"negate":false,"operator":"OR"},{"cpeMatch":[{"criteria":"cpe:2.3:h:wago:pfc200:-:*:*:*:*:*:*:*","matchCriteriaId":"688A3248-7EAA-499D-A47C-A4D4900CDBD1","vulnerable":false}],"negate":false,"operator":"OR"}],"operator":"AND"}],"cveTags":[],"descriptions":[{"lang":"en","value":"An exploitable stack buffer overflow vulnerability vulnerability exists in the iocheckd service ‘I/O-Check’ functionality of WAGO PFC 200 Firmware version 03.02.02(14). The destination buffer sp+0x440 is overflowed with the call to sprintf() for any domainname values that are greater than 1024-len(‘/etc/config-tools/edit_dns_server domain-name=‘) in length. A domainname value of length 0x3fa will cause the service to crash."},{"lang":"es","value":"Se presenta una vulnerabilidad de desbordamiento del búfer de la pila explotable en la funcionalidad \"I-O-Check\" del servicio iocheckd de WAGO PFC 200 versiones de Firmware 03.02.02(14). El búfer de destino sp+0x440 es desbordado con la llamada a la función sprintf() para cualquier valor de nombre de dominio que sea mayor que 1024-len(‘/etc/config-tools/edit_dns_server domain-name=‘) en longitud. Un valor de nombre de dominio de longitud 0x3fa causará que el servicio se bloquee."}],"id":"CVE-2019-5177","lastModified":"2026-06-17T02:37:15.953","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"LOW","cvssData":{"accessComplexity":"LOW","accessVector":"LOCAL","authentication":"NONE","availabilityImpact":"PARTIAL","baseScore":2.1,"confidentialityImpact":"NONE","integrityImpact":"NONE","vectorString":"AV:L/AC:L/Au:N/C:N/I:N/A:P","version":"2.0"},"exploitabilityScore":3.9,"impactScore":2.9,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"exploitabilityScore":1.8,"impactScore":3.6,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2020-03-12T00:15:18.227","references":[{"source":"talos-cna@cisco.com","tags":["Exploit","Technical Description","Third Party Advisory"],"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0963"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Technical Description","Third Party Advisory"],"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0963"}],"sourceIdentifier":"talos-cna@cisco.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-787"}],"source":"nvd@nist.gov","type":"Primary"}]}