CVE-2026-3894: Out-of-bounds Read vulnerability in RTI Connext Professional (Core Libraries) allows Overread Buffers.

Published Jun 17, 2026
·
Updated

Out-of-bounds Read vulnerability in RTI Connext Professional (Core Libraries) allows Overread Buffers.This issue affects Connext Professional: from 7.4.0 before 7.7.0, from 7.0.0 before 7.3.1.3, from 6.1.0 before 6.1., from 6.0.0 before 6.0., from 5.3.0 before 5.3., from 5.0.0 before 5.2..

Affected Software

2 affected components
RTI Connext Professional (Core Libraries)>=7.4.0<7.7.0, >=7.0.0<7.3.1.3, >=6.1.0<6.1.*, >=6.0.0<6.0.*, >=5.3.0<5.3.*, >=5.0.0<5.2.*
RTI Connext Professional>=5.0.0<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 7.3.1.3
  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

Jun 17, 2026
CVE Published
via MITRE·05:19 PM
Data Sourced
via MITRE·05:19 PM
DescriptionWeakness
Data Sourced
via NVD·06:17 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-3894?

CVE-2026-3894 has a risk rating of 23, indicating a high severity vulnerability.

2

How do I fix CVE-2026-3894?

To fix CVE-2026-3894, update RTI Connext Professional to a version that is not affected, specifically version 7.7.0 or later.

3

Which versions are affected by CVE-2026-3894?

CVE-2026-3894 affects RTI Connext Professional versions prior to 7.7.0, 7.3.1.3, 6.1.*, 6.0.*, 5.3.*, and 5.2.*.

4

What are the risks associated with CVE-2026-3894?

The risks associated with CVE-2026-3894 include potential for overreading buffers, which may lead to information disclosure or application crashes.

5

Is there a workaround for CVE-2026-3894 until a patch is applied?

Currently, no specific workarounds for CVE-2026-3894 are recommended aside from upgrading to the patched versions.

Contact

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