CVE-2026-7300

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RTI Connext Professional (Web Integration Service) allows Filter Failure through Buffer Overflow.This issue affects Connext Professional: from 7.4.0 before 7.*, from 7.0.0 before 7.3.1.3, from 6.1.2 before 6.1.*.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.rti.com/vulnerabilities/#cve-2026-7300	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*

History

08 Jul 2026, 13:55

Type	Values Removed	Values Added
First Time		Rti connext Professional Rti
References	~~() https://www.rti.com/vulnerabilities/#cve-2026-7300 -~~	() https://www.rti.com/vulnerabilities/#cve-2026-7300 - Vendor Advisory
CPE		cpe:2.3:a:rti:connext_professional::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5

17 Jun 2026, 20:20

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-17 18:18

Updated : 2026-07-08 13:55

NVD link : CVE-2026-7300

Mitre link : CVE-2026-7300

CVE.ORG link : CVE-2026-7300

JSON object : View

Products Affected

rti

connext_professional

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

{"id": "CVE-2026-7300", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-7300", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-17T18:00:26.868901Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "3f572a00-62e2-4423-959a-7ea25eff1638", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.8, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "3f572a00-62e2-4423-959a-7ea25eff1638", "affectedData": [{"vendor": "RTI", "modules": ["Web Integration Service"], "product": "Connext Professional", "versions": [{"status": "affected", "version": "7.4.0", "lessThan": "7.*", "versionType": "custom"}, {"status": "affected", "version": "7.0.0", "lessThan": "7.3.1.3", "versionType": "custom"}, {"status": "affected", "version": "6.1.2", "lessThan": "6.1.*", "versionType": "custom"}], "packageURL": "pkg:generic/connext_professional", "packageName": "connext_professional", "defaultStatus": "unaffected"}]}], "published": "2026-06-17T18:18:05.753", "references": [{"url": "https://www.rti.com/vulnerabilities/#cve-2026-7300", "tags": ["Vendor Advisory"], "source": "3f572a00-62e2-4423-959a-7ea25eff1638"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "3f572a00-62e2-4423-959a-7ea25eff1638", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RTI Connext Professional (Web Integration Service) allows Filter Failure through Buffer Overflow.This issue affects Connext Professional: from 7.4.0 before 7.*, from 7.0.0 before 7.3.1.3, from 6.1.2 before 6.1.*."}], "lastModified": "2026-07-08T13:55:10.853", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "21210B58-4B30-4C47-B448-F4CAE754CDBD", "versionEndExcluding": "7.4.0", "versionStartIncluding": "6.1.2"}], "operator": "OR"}]}], "sourceIdentifier": "3f572a00-62e2-4423-959a-7ea25eff1638"}