{"id":"CVE-2026-18459","state":"PUBLISHED","title":"Incorrect Calculation vulnerability in RTI Connext Professional (Core Libraries) allows Abuse Existing Functionality.","description":"Incorrect Calculation vulnerability in RTI Connext Professional (Core Libraries) allows Abuse Existing Functionality. This issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.6, from 6.1.0 before 6.1.*, from 6.0.0 before 6.0.*, from 5.3.0 before 5.3.*, from 5.2.0 before 5.2.*, from 4.1x before 5.1.*.","publishedAt":"2026-09-22T17:50:19.552Z","updatedAt":"2026-09-22T18:48:01.536Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"RTI"},"assigner":"RTI","products":["RTI Connext Professional"],"affected":[{"vendor":"RTI","product":"Connext Professional","packageName":"connext_professional","packageURL":"pkg:generic/connext_professional","defaultStatus":"unaffected","versions":[{"version":"7.4.0","status":"affected","lessThan":"7.7.0.1","versionType":"custom"},{"version":"7.0.0","status":"affected","lessThan":"7.3.1.6","versionType":"custom"},{"version":"6.1.0","status":"affected","lessThan":"6.1.*","versionType":"custom"},{"version":"6.0.0","status":"affected","lessThan":"6.0.*","versionType":"custom"},{"version":"5.3.0","status":"affected","lessThan":"5.3.*","versionType":"custom"},{"version":"5.2.0","status":"affected","lessThan":"5.2.*","versionType":"custom"},{"version":"4.1x","status":"affected","lessThan":"5.1.*","versionType":"custom"}],"modules":["Core Libraries"]}],"references":["https://www.rti.com/vulnerabilities/#cve-2026-18459"],"weaknesses":["CWE-682"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/18xxx/CVE-2026-18459.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18459","state":"PUBLISHED","datePublished":"2026-09-22T17:50:19.552Z","dateUpdated":"2026-09-22T18:48:01.536Z","assignerShortName":"RTI","assignerOrgId":"3f572a00-62e2-4423-959a-7ea25eff1638","dateReserved":"2026-07-31T07:30:12.139Z"},"containers":{"cna":{"title":"Incorrect Calculation vulnerability in RTI Connext Professional (Core Libraries) allows Abuse Existing Functionality.","descriptions":[{"lang":"en","value":"Incorrect Calculation vulnerability in RTI Connext Professional (Core Libraries) allows Abuse Existing Functionality. This issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.6, from 6.1.0 before 6.1.*, from 6.0.0 before 6.0.*, from 5.3.0 before 5.3.*, from 5.2.0 before 5.2.*, from 4.1x before 5.1.*."}],"affected":[{"vendor":"RTI","product":"Connext Professional","packageName":"connext_professional","packageURL":"pkg:generic/connext_professional","defaultStatus":"unaffected","versions":[{"version":"7.4.0","status":"affected","lessThan":"7.7.0.1","versionType":"custom"},{"version":"7.0.0","status":"affected","lessThan":"7.3.1.6","versionType":"custom"},{"version":"6.1.0","status":"affected","lessThan":"6.1.*","versionType":"custom"},{"version":"6.0.0","status":"affected","lessThan":"6.0.*","versionType":"custom"},{"version":"5.3.0","status":"affected","lessThan":"5.3.*","versionType":"custom"},{"version":"5.2.0","status":"affected","lessThan":"5.2.*","versionType":"custom"},{"version":"4.1x","status":"affected","lessThan":"5.1.*","versionType":"custom"}],"modules":["Core Libraries"]}],"references":[{"url":"https://www.rti.com/vulnerabilities/#cve-2026-18459"}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"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:N/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-682","description":"CWE-682 Incorrect Calculation","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"RTI","orgId":"3f572a00-62e2-4423-959a-7ea25eff1638","dateUpdated":"2026-09-22T17:50:19.552Z"},"datePublic":"2026-09-15T17:47:47.193Z","impacts":[{"capecId":"CAPEC-210","descriptions":[{"lang":"en","value":"CAPEC-210 Abuse Existing Functionality"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"RTI Lubna 1.18.7"},"cpeApplicability":[{"nodes":[{"operator":"OR","negated":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*","versionStartIncluding":"7.4.0","versionEndExcluding":"7.7.0.1"},{"vulnerable":true,"criteria":"cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0.0","versionEndExcluding":"7.3.1.6"},{"vulnerable":true,"criteria":"cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.0","versionEndExcluding":"6.1.*"},{"vulnerable":true,"criteria":"cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0.0","versionEndExcluding":"6.0.*"},{"vulnerable":true,"criteria":"cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3.0","versionEndExcluding":"5.3.*"},{"vulnerable":true,"criteria":"cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2.0","versionEndExcluding":"5.2.*"},{"vulnerable":true,"criteria":"cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*","versionStartIncluding":"4.1x","versionEndExcluding":"5.1.*"}]}]}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-22T18:47:54.647084Z","id":"CVE-2026-18459","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":"2026-09-22T18:48:01.536Z"}}]}}}