CVE-2025-14543: Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Core Libraries) allows Serialized Data External Linking.

Published Apr 30, 2026
·
Updated

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..

Affected Software

7 affected components
Real-Time Innovations Connext Professional (Core Libraries)>=7.4.0<7.7.0, >=7.0.0<7.3.1.1, >=6.1.0<6.1.*, >=6.0.0<6.0.*, >=5.3.0<5.3.*, >=4.3x<5.2.*
RTI Connext Professional>=4.3.0<=5.2.3
RTI Connext Professional>=5.3.0<=5.3.1.45
RTI Connext Professional>=6.0.0<=6.0.1.40
RTI Connext Professional>=6.1.0<=6.1.2.27
RTI Connext Professional>=7.0.0<7.3.1.1
RTI Connext Professional>=7.4.0<7.7.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade RTI Connext Professional (Core Libraries) to a version that resolves this vulnerability.

    Fixed in 7.7.0
  2. Upgrade

    Upgrade RTI Connext Professional (Core Libraries) to a version that resolves this vulnerability.

    Fixed in 7.3.1.1
  3. Upgrade

    Upgrade RTI Connext Professional (Core Libraries) to a version that resolves this vulnerability.

    Fixed in 6.1.*
  4. Upgrade

    Upgrade RTI Connext Professional (Core Libraries) to a version that resolves this vulnerability.

    Fixed in 6.0.*
  5. Upgrade

    Upgrade RTI Connext Professional (Core Libraries) to a version that resolves this vulnerability.

    Fixed in 5.3.*
  6. Upgrade

    Upgrade RTI Connext Professional (Core Libraries) to a version that resolves this vulnerability.

    Fixed in 5.2.*

Event History

Apr 30, 2026
CVE Published
via MITRE·03:25 PM
Data Sourced
via MITRE·03:25 PM
DescriptionWeakness
Data Sourced
via NVD·04:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-14543?

CVE-2025-14543 is classified as a medium-severity vulnerability due to its potential for Serialized Data External Linking.

2

How do I fix CVE-2025-14543?

To fix CVE-2025-14543, upgrade to the latest version of Real-Time Innovations Connext Professional that is not affected by the vulnerability.

3

Which versions are affected by CVE-2025-14543?

Affected versions of Connext Professional include 5.2.x, 5.3.x, 6.0.x, 6.1.x, 7.0.0, 7.3.1.1, and up to 7.7.0.

4

What type of vulnerability is CVE-2025-14543?

CVE-2025-14543 is an Improper Restriction of XML External Entity Reference vulnerability.

5

What impact does CVE-2025-14543 have on my system?

CVE-2025-14543 may allow attackers to exploit serialized data through external entity references, potentially leading to sensitive data exposure.

Company

Resources

Contact

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