# CVE-2025-14543

> Vulnerability · severity: **CRITICAL** (CVSS 9.1).

## Description

Improper Restriction of XML External Entity Reference vulnerability in Connext Professional (Core Libraries) allows Serialized Data External Linking.This issue affects Connext Professional: from 7.4.0 before 7.7.0, from 7.0.0 before 7.3.1.1, from 6.1.0 before 6.1.*, from 6.0.0 before 6.0.*, from 5.3.0 before 5.3.*, from 4.3x before 5.2.*.

## Key facts

- **CVE ID:** CVE-2025-14543
- **Published:** 2026-04-30
- **CVSS severity:** CRITICAL
- **CVSS base score:** 9.1
- **CWE codes:** CWE-611

## Affected products

- `rti:connext_professional`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-14543

## Citation

> AI Analytics. CVE-2025-14543. Retrieved 2026-07-19 from https://api.ai-analytics.org/cve/CVE-2025-14543. Derived from NIST NVD. Licensed CC0.

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