{"id":"CVE-2026-81574","state":"PUBLISHED","title":"Format String Vulnerability in Logger","description":"In CodeMeter Runtime before versions 8.41a and 9.10, the logger does not sanitize input strings in certain cases, allowing an attacker to inject printf-style format\nspecifiers. This can be used to reliably crash CodeMeter and disclose sensitive information such as process memory\nand stack canaries. The attack works locally, for example by using cmu --set-proxy to set the proxy value, and\nremotely when combined with CVE-2026-81573 by setting General.ProxyServer and then triggering this\nvulnerability.","publishedAt":"2026-08-27T07:11:56.916Z","updatedAt":"2026-08-27T13:32:50.315Z","severity":{"score":8.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","source":"wibu"},"assigner":"wibu","products":["wibu-systems-ag codemeter-runtime"],"affected":[{"vendor":"wibu-systems-ag","product":"codemeter-runtime","defaultStatus":"unaffected","versions":[{"version":"9.00","status":"affected","lessThan":"9.10","versionType":"custom"},{"version":"8.00","status":"affected","lessThan":"8.41a","versionType":"custom"},{"version":"7.00","status":"affected"},{"version":"6.00","status":"unaffected"}],"collectionURL":"https://www.wibu.com/products/codemeter/runtime.html"}],"references":["https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-103401.pdf"],"weaknesses":["CWE-134"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/81xxx/CVE-2026-81574.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-81574","state":"PUBLISHED","datePublished":"2026-08-27T07:11:56.916Z","dateUpdated":"2026-08-27T13:32:50.315Z","assignerShortName":"wibu","assignerOrgId":"2fc02b1f-71e7-4514-a878-169626f68903","dateReserved":"2026-08-27T07:01:24.780Z"},"containers":{"cna":{"title":"Format String Vulnerability in Logger","descriptions":[{"lang":"en","value":"In CodeMeter Runtime before versions 8.41a and 9.10, the logger does not sanitize input strings in certain cases, allowing an attacker to inject printf-style format\nspecifiers. This can be used to reliably crash CodeMeter and disclose sensitive information such as process memory\nand stack canaries. The attack works locally, for example by using cmu --set-proxy to set the proxy value, and\nremotely when combined with CVE-2026-81573 by setting General.ProxyServer and then triggering this\nvulnerability."}],"affected":[{"vendor":"wibu-systems-ag","product":"codemeter-runtime","defaultStatus":"unaffected","versions":[{"version":"9.00","status":"affected","lessThan":"9.10","versionType":"custom"},{"version":"8.00","status":"affected","lessThan":"8.41a","versionType":"custom"},{"version":"7.00","status":"affected"},{"version":"6.00","status":"unaffected"}],"collectionURL":"https://www.wibu.com/products/codemeter/runtime.html"}],"references":[{"url":"https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-103401.pdf","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-134","description":"CWE-134 Use of Externally-Controlled format string","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"wibu","orgId":"2fc02b1f-71e7-4514-a878-169626f68903","dateUpdated":"2026-08-27T08:01:30.061Z"},"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:wibu-systems-ag:codemeter-runtime:*:*:*:*:*:*:*:*","versionEndExcluding":"9.10","versionStartIncluding":"9.00","vulnerable":true},{"criteria":"cpe:2.3:a:wibu-systems-ag:codemeter-runtime:*:*:*:*:*:*:*:*","versionEndExcluding":"8.41a","versionStartIncluding":"8.00","vulnerable":true},{"criteria":"cpe:2.3:a:wibu-systems-ag:codemeter-runtime:7.00:*:*:*:*:*:*:*","vulnerable":true},{"criteria":"cpe:2.3:a:wibu-systems-ag:codemeter-runtime:6.00:*:*:*:*:*:*:*","vulnerable":false}],"negate":false,"operator":"OR"}],"operator":"OR"}],"credits":[{"lang":"en","type":"reporter","value":"Andrew Teylu of Vector Informatik GmbH"}],"datePublic":"2026-08-25T13:00:00.000Z","source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.0-beta"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-27T13:32:09.372443Z","id":"CVE-2026-81574","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-27T13:32:50.315Z"}}]}}}