---
id: CVE-2026-7300
title: >-
  Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
  vulnerability in RTI Connext Professional (Web Integration Service) allows
  Filter Failure through Buffer Overflow
summary: >-
  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…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-120
vendor: rti
product: connext_professional
affected:
  - 'connext_professional >= 6.1.2, < 7.4.0'
patched:
  - connext_professional 7.4.0
published: '2026-06-17'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T18:17:19.783'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-7300'
references:
  - url: 'https://www.rti.com/vulnerabilities/#cve-2026-7300'
    label: 3f572a00-62e2-4423-959a-7ea25eff1638
tags:
  - nvd
  - cve.org
  - score-dispute
epss: 0.00422
epssPercentile: 0.33894
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-06-17T18:00:26.868901Z'
scores:
  nvd: 6.5
  cna: 8.8
ingestedAt: '2026-09-22T18:08:12.481Z'
---

## Overview

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 7.7.0.1, from 7.0.0 before 7.3.1.3, from 6.1.2 before 6.1.*.

## Affected

- `connext_professional >= 6.1.2, < 7.4.0`

## Remediation

Upgrade past the affected range:

- `connext_professional 7.4.0`