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CVE-2026-3894

Rti Connext Professional out-of-bounds read

9.1 CRITICALEPSS 0.33%
  1. Published17 Jun 2026

Description

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 5.2.0 before 5.2.*, from 5.0.0 before 5.1.*.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected products

Rti Connext Professional≥ 5.0.0 < 7.7.0

Remediation

Fixed in
Rti Connext Professional≥ 7.7.0

References

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Frequently asked

Is CVE-2026-3894 being actively exploited?

CVE-2026-3894 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.33%.

How severe is CVE-2026-3894?

CVE-2026-3894 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.33% probability of exploitation.

Which products are affected by CVE-2026-3894?

Affected products include Rti Connext Professional.

How do I fix CVE-2026-3894?

Upgrade affected software to a fixed version, for example Rti Connext Professional 7.7.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-3894 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.