{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-35227","assignerOrgId":"270ccfa6-a436-4e77-922e-914ec3a9685c","state":"PUBLISHED","assignerShortName":"CERTVDE","dateReserved":"2026-04-01T19:54:21.499Z","datePublished":"2026-05-12T07:14:41.517Z","dateUpdated":"2026-05-13T14:38:41.132Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"CODESYS Modbus","vendor":"CODESYS","versions":[{"lessThan":"4.6.0.0","status":"affected","version":"1.0.0.0","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:codesys:codesys_modbus:*:*:*:*:*:*:*:*","versionEndExcluding":"4.6.0.0","versionStartIncluding":"1.0.0.0","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"credits":[{"lang":"en","type":"finder","user":"00000000-0000-4000-9000-000000000000","value":"ABB Schweiz AG"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"An unauthenticated remote attacker may exhaust all available TCP connections in the CODESYS Modbus TCP Server stack if a race condition in connection handling is successfully exploited, preventing legitimate clients from establishing new connections.<br>"}],"value":"An unauthenticated remote attacker may exhaust all available TCP connections in the CODESYS Modbus TCP Server stack if a race condition in connection handling is successfully exploited, preventing legitimate clients from establishing new connections."}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":8.2,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-772","description":"CWE-772 Missing Release of Resource after Effective Lifetime","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"270ccfa6-a436-4e77-922e-914ec3a9685c","shortName":"CERTVDE","dateUpdated":"2026-05-12T07:14:41.517Z"},"references":[{"url":"https://certvde.com/de/advisories/VDE-2026-042"}],"source":{"advisory":"VDE-2026-042","defect":["CERT@VDE#642013"],"discovery":"UNKNOWN"},"title":"Improper resource management in CODESYS Modbus TCP Server","x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-13T14:29:08.743627Z","id":"CVE-2026-35227","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-13T14:38:41.132Z"}}]}}