{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-18626", "assignerOrgId": "3f572a00-62e2-4423-959a-7ea25eff1638", "state": "PUBLISHED", "assignerShortName": "RTI", "dateReserved": "2026-08-03T08:20:41.882Z", "datePublished": "2026-09-22T17:50:23.288Z", "dateUpdated": "2026-09-22T18:45:58.591Z" }, "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": "7.4.0", "versionType": "custom" }, { "lessThan": "7.3.1.6", "status": "affected", "version": "7.0.0", "versionType": "custom" }, { "lessThan": "6.1.*", "status": "affected", "version": "6.1.0", "versionType": "custom" }, { "lessThan": "6.0.*", "status": "affected", "version": "6.0.0", "versionType": "custom" }, { "lessThan": "5.3.*", "status": "affected", "version": "5.3.0", "versionType": "custom" }, { "lessThan": "5.2.*", "status": "affected", "version": "5.2.0", "versionType": "custom" }, { "lessThan": "5.1.*", "status": "affected", "version": "5.0.0", "versionType": "custom" } ] } ], "datePublic": "2026-09-15T17:47:35.794Z", "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "Out-of-bounds Read vulnerability in RTI Connext Professional (Core Libraries) allows Overread Buffers.

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 5.0.0 before 5.1.*.

" } ], "value": "Out-of-bounds Read vulnerability in RTI Connext Professional (Core Libraries) allows Overread Buffers. 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 5.0.0 before 5.1.*." } ], "impacts": [ { "capecId": "CAPEC-540", "descriptions": [ { "lang": "en", "value": "CAPEC-540 Overread Buffers" } ] } ], "metrics": [ { "cvssV4_0": { "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "baseScore": 6.8, "baseSeverity": "MEDIUM", "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: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" } ] }, { "cvssV4_0": { "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "baseScore": 6.8, "baseSeverity": "MEDIUM", "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: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": "Security Extensions Enabled" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "3f572a00-62e2-4423-959a-7ea25eff1638", "shortName": "RTI", "dateUpdated": "2026-09-22T17:50:23.288Z" }, "references": [ { "url": "https://www.rti.com/vulnerabilities/#cve-2026-18626" } ], "source": { "discovery": "UNKNOWN" }, "title": "Out-of-bounds Read vulnerability in RTI Connext Professional (Core Libraries) allows Overread Buffers.", "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": "5.0.0", "versionEndExcluding": "5.1.*" } ] } ] } ] }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-22T18:45:51.757566Z", "id": "CVE-2026-18626", "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": "2026-09-22T18:45:58.591Z" } } ] } }