{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18461", "assignerOrgId": "3f572a00-62e2-4423-959a-7ea25eff1638", "state": "PUBLISHED", "assignerShortName": "RTI", "dateReserved": "2026-07-31T07:31:16.835Z", "datePublished": "2026-09-22T17:50:21.268Z", "dateUpdated": "2026-09-22T18:46:56.035Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "modules": ["Core Libraries"], "product": "Connext Professional", "packageName": "connext_professional", "packageURL": "pkg:generic/connext_professional", "vendor": "RTI", "versions": [{"lessThan": "7.7.0.1", "status": "affected", "version": "7.5.0", "versionType": "custom"}, {"lessThan": "7.3.1.6", "status": "affected", "version": "7.3.0.10", "versionType": "custom"}]}], "datePublic": "2026-09-15T17:47:41.455Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Use of Externally-Controlled Format String vulnerability in RTI Connext Professional (Core Libraries) allows Format String Injection.<p>This issue affects Connext Professional: from 7.5.0 before 7.7.0.1, from 7.3.0.10 before 7.3.1.6.</p>"}], "value": "Use of Externally-Controlled Format String vulnerability in RTI Connext Professional (Core Libraries) allows Format String Injection. This issue affects Connext Professional: from 7.5.0 before 7.7.0.1, from 7.3.0.10 before 7.3.1.6."}], "impacts": [{"capecId": "CAPEC-135", "descriptions": [{"lang": "en", "value": "CAPEC-135 Format String Injection"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 9.2, "baseSeverity": "CRITICAL", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/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"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-134", "description": "CWE-134 Use of Externally-Controlled Format String", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "3f572a00-62e2-4423-959a-7ea25eff1638", "shortName": "RTI", "dateUpdated": "2026-09-22T17:50:21.268Z"}, "references": [{"url": "https://www.rti.com/vulnerabilities/#cve-2026-18461"}], "source": {"discovery": "UNKNOWN"}, "title": "Use of Externally-Controlled Format String vulnerability in RTI Connext Professional (Core Libraries) allows Format String Injection.", "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": "7.5.0", "versionEndExcluding": "7.7.0.1"}, {"vulnerable": true, "criteria": "cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.3.0.10", "versionEndExcluding": "7.3.1.6"}]}]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-22T18:46:47.445803Z", "id": "CVE-2026-18461", "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": "2026-09-22T18:46:56.035Z"}}]}}