{"schemaVersion":3,"id":"CVE-2021-20094","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"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.","dates":{"published":"2021-06-16T11:09:07.000Z","modified":"2024-08-03T17:30:07.586Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.04673,"percentile":0.91667,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.04673},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.04673,"percentile":0.91667}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.04673,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.04673,"percentile":0.91667}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_42E81FFCFDBECA80","name":"Exploit Reference (tenable.com)","source":"reference","url":"https://www.tenable.com/security/research/tra-2021-24","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-125","name":"Out-of-bounds Read","description":"The product reads data past the end, or before the beginning, of the intended buffer.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/125.html"}],"affected":[{"vendor":"siemens","product":"pss_cape","name":"pss cape","label":"pss_cape","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/siemens/pss_cape"},{"vendor":"siemens","product":"sicam_230_firmware","name":"sicam 230 firmware","label":"sicam_230_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/siemens/sicam_230"},{"vendor":"wibu","product":"codemeter","name":"codemeter","label":"codemeter","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 7.21a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.21a","eol":null,"hubHref":"/vendor/wibu/codemeter"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.tenable.com/security/research/tra-2021-24","label":"www.tenable.com/security/research/tra-2021-24","hostname":"www.tenable.com","tags":["X Refsource MISC","Exploit","Patch","Third Party Advisory"]},{"url":"https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/Advisory_WIBU-210423-02.pdf","label":"cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/Advisory_WIBU-210423-02.pdf","hostname":"cdn.wibu.com","tags":["X Refsource MISC","Mitigation","Vendor Advisory"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-675303.pdf","label":"cert-portal.siemens.com/productcert/pdf/ssa-675303.pdf","hostname":"cert-portal.siemens.com","tags":["X Refsource CONFIRM","Patch","Third Party Advisory"]},{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-210-02","label":"us-cert.cisa.gov/ics/advisories/icsa-21-210-02","hostname":"us-cert.cisa.gov","tags":["X Refsource MISC","Third Party Advisory","US Government Resource"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-06-16T11:09:07.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-03T17:30:07.586Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":41,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T13:37:18.555Z","stale":false,"partial":false}}