Is CVE-2025-14543 in the CISA KEV catalog?

No. CVE-2025-14543 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-14543?

CVE-2025-14543 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2025-14543?

CVE-2025-14543 has an EPSS score of 0.21% (11th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-14543?

Upgrade connext professional to 7.7.0 or later.

CVE & CISA-KEV Catalog

CVE-2025-14543

CRITICAL

9.1

CVSS v3

NVD

Description

Improper Restriction of XML External Entity Reference vulnerability in RTI 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.*.

CWE-611XML External Entity (XXE)

How to fix

Remediation Available

connext professionalNVD

Affected:>= 7.4.0, < 7.7.0Fixed in:7.7.0CVE-2025-14543derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Exploit Intelligence

0.21%probability of exploitation in 30 days

11thpercentile

Low risk: more likely to be exploited than 11% of all known CVEs.

References

Vendor Advisory1

rti.com

Embed a live status badge for CVE-2025-14543

Markdown

[![CVE-2025-14543](https://tridentstack.com/cve/badge/CVE-2025-14543.svg)](https://tridentstack.com/cve/CVE-2025-14543)

HTML

<a href="https://tridentstack.com/cve/CVE-2025-14543"><img src="https://tridentstack.com/cve/badge/CVE-2025-14543.svg" alt="CVE-2025-14543"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-17.