{"affected":[{"affectedData":[{"product":"Wibu-Systems CodeMeter","vendor":"n/a","versions":[{"status":"affected","version":"< 7.21a"}]}],"source":"vulnreport@tenable.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:wibu:codemeter:*:*:*:*:*:*:*:*","matchCriteriaId":"E4D83EED-5237-4A45-82AA-5370A6B9D0D9","versionEndExcluding":"7.21a","vulnerable":true}],"negate":false,"operator":"OR"}]},{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:siemens:pss_cape:-:*:*:*:*:*:*:*","matchCriteriaId":"890BA38B-38CD-4B6D-96E8-A786CFFE4C35","vulnerable":true}],"negate":false,"operator":"OR"}]},{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:siemens:sicam_230_firmware:-:*:*:*:*:*:*:*","matchCriteriaId":"ACC0968E-7082-4FBF-AEC0-91B280DA2A8C","vulnerable":true}],"negate":false,"operator":"OR"},{"cpeMatch":[{"criteria":"cpe:2.3:h:siemens:sicam_230:-:*:*:*:*:*:*:*","matchCriteriaId":"702949EB-ED2D-4E85-802B-93EEA4FA939E","vulnerable":false}],"negate":false,"operator":"OR"}],"operator":"AND"}],"cveTags":[],"descriptions":[{"lang":"en","value":"A denial of service vulnerability exists in Wibu-Systems CodeMeter versions < 7.21a. An unauthenticated remote attacker can exploit this issue to crash the CodeMeter Runtime Server."},{"lang":"es","value":"Se presenta una vulnerabilidad de denegación de servicio en las  de Wibu-Systems CodeMeter versiones anteriores a 7.21a. Un atacante remoto no autenticado puede explotar este problema para bloquear el CodeMeter Runtime Server"}],"id":"CVE-2021-20094","lastModified":"2026-06-17T03:33:15.963","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":"2021-06-16T12:15:12.073","references":[{"source":"vulnreport@tenable.com","tags":["Mitigation","Vendor Advisory"],"url":"https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/Advisory_WIBU-210423-02.pdf"},{"source":"vulnreport@tenable.com","tags":["Patch","Third Party Advisory"],"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-675303.pdf"},{"source":"vulnreport@tenable.com","tags":["Third Party Advisory","US Government Resource"],"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-210-02"},{"source":"vulnreport@tenable.com","tags":["Exploit","Patch","Third Party Advisory"],"url":"https://www.tenable.com/security/research/tra-2021-24"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mitigation","Vendor Advisory"],"url":"https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/Advisory_WIBU-210423-02.pdf"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"],"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-675303.pdf"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","US Government Resource"],"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-210-02"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Patch","Third Party Advisory"],"url":"https://www.tenable.com/security/research/tra-2021-24"}],"sourceIdentifier":"vulnreport@tenable.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-125"}],"source":"nvd@nist.gov","type":"Primary"}]}