{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44469","assignerOrgId":"270ccfa6-a436-4e77-922e-914ec3a9685c","state":"PUBLISHED","assignerShortName":"CERTVDE","dateReserved":"2026-05-06T17:08:03.356Z","datePublished":"2026-05-26T06:39:04.477Z","dateUpdated":"2026-05-26T10:48:51.345Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"CODESYS Development System","vendor":"CODESYS","versions":[{"lessThan":"3.5.22.20","status":"affected","version":"3.0.0.0","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:codesys:codesys_development_system:*:*:*:*:*:*:*:*","versionEndExcluding":"3.5.22.20","versionStartIncluding":"3.0.0.0","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"credits":[{"lang":"en","type":"finder","value":"David Ruscheweyh from SEW-EURODRIVE GmbH & Co KG"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The affected product extracts installation files to a temporary directory with incorrect default permissions during administrative installation. A low-privileged local attacker can exploit a TOCTOU race condition with a practical time window to replace verified files with malicious ones before installation, resulting in local privilege escalation."}],"value":"The affected product extracts installation files to a temporary directory with incorrect default permissions during administrative installation. A low-privileged local attacker can exploit a TOCTOU race condition with a practical time window to replace verified files with malicious ones before installation, resulting in local privilege escalation."}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":8.5,"baseSeverity":"HIGH","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-276","description":"CWE-276 Incorrect Default Permissions","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"270ccfa6-a436-4e77-922e-914ec3a9685c","shortName":"CERTVDE","dateUpdated":"2026-05-26T06:39:04.477Z"},"references":[{"url":"https://www.certvde.com/en/advisories/VDE-2026-055/"}],"source":{"advisory":"VDE-2026-055","defect":["CERT@VDE#642071"],"discovery":"UNKNOWN"},"title":"Incorrect Default Permissions in CODESYS Development System","x_generator":{"engine":"Vulnogram 0.4.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-26T10:44:51.917941Z","id":"CVE-2026-44469","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-26T10:48:51.345Z"}}]}}