---
id: CVE-2025-1252
title: >-
  Heap-based Buffer Overflow vulnerability in RTI Connext Professional (Core
  Libraries) allows Overflow Variables and Tags
summary: >-
  Heap-based Buffer Overflow vulnerability in RTI Connext Professional (Core
  Libraries) allows Overflow Variables and Tags. This issue affects Connext
  Professional: from 7.4.0 before 7.5.0, from 7.0.0 before 7.3.0.7, from 6.1.0
  before 6.1.…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'
cwe:
  - CWE-122
  - CWE-787
vendor: rti
product: connext_professional
affected:
  - 'connext_professional >= 4.4, <= 5.2.3'
  - 'connext_professional >= 5.3.0, <= 5.3.1.45'
  - 'connext_professional >= 6.0.0, <= 6.0.1.40'
  - 'connext_professional >= 6.1.0, < 6.1.2.23'
  - 'connext_professional >= 7.0.0, < 7.3.0.7'
  - 'connext_professional >= 7.4.0, < 7.5.0'
patched:
  - connext_professional 7.5.0
published: '2025-05-08'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T18:17:09.277'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-1252'
references:
  - url: 'https://www.rti.com/vulnerabilities/#cve-2025-1252'
    label: 3f572a00-62e2-4423-959a-7ea25eff1638
tags:
  - nvd
  - cve.org
epss: 0.00154
epssPercentile: 0.04989
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2025-05-08T14:05:57.235012Z'
scores:
  nvd: 7.1
  cna: 6.9
ingestedAt: '2026-09-22T18:08:12.498Z'
---

## Overview

Heap-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Variables and Tags. This issue affects Connext Professional: from 7.4.0 before 7.5.0, from 7.0.0 before 7.3.0.7, from 6.1.0 before 6.1.2.23, from 6.0.0 before 6.0.1.42, from 5.3.0 before 5.3.*, from 5.2.0 before 5.2.*, from 4.4d before 5.1.*.

## Affected

- `connext_professional >= 4.4, <= 5.2.3`
- `connext_professional >= 5.3.0, <= 5.3.1.45`
- `connext_professional >= 6.0.0, <= 6.0.1.40`
- `connext_professional >= 6.1.0, < 6.1.2.23`
- `connext_professional >= 7.0.0, < 7.3.0.7`
- `connext_professional >= 7.4.0, < 7.5.0`

## Remediation

Upgrade past the affected range:

- `connext_professional 7.5.0`