Is CVE-2026-2674 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-2674 being exploited in the wild.

How severe is CVE-2026-2674?

Informational severity, with a CVSS score of 4.8, published 17 June 2026.

Which products and versions are affected?

RTI Connext Professional 7.4.0 before 7.7.0, 7.0.0 before 7.3.1.3, 6.1.0 before 6.1.*.

Is there a fix for CVE-2026-2674?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-2674 attacked?

It is attacked with local access, in a software library.

Am I affected by CVE-2026-2674?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-2674: RTI Connext Professional out-of-bounds write in Core Libraries

CVE-2026-2674 · Severity: info · CVSS 4.8 · Published 2026-06-17

RTI Connext Professional, a software framework used for real-time data distribution in industrial and mission-critical systems, contains a flaw in how it handles data buffers. A local attacker with basic user access could exploit this to cause a system crash or potentially modify data, impacting the reliability and integrity of the communication services. This affects the Queueing, Core Libraries, and Persistence services within the suite.

Quick answers

Is CVE-2026-2674 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-2674 being exploited in the wild.
How severe is CVE-2026-2674?: Informational severity, with a CVSS score of 4.8, published 17 June 2026.
Which products and versions are affected?: RTI Connext Professional 7.4.0 before 7.7.0, 7.0.0 before 7.3.1.3, 6.1.0 before 6.1.*.
Is there a fix for CVE-2026-2674?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-2674 attacked?: It is attacked with local access, in a software library.
Am I affected by CVE-2026-2674?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An out-of-bounds write vulnerability (CWE-787) exists in RTI Connext Professional within the Queueing Service, Core Libraries, and Persistence Service. The flaw allows for buffer overflows when processing specific data. According to the CVSS:4.0 vector, the attack vector is local (AV:L) and requires low privileges (PR:L) with no user interaction. Successful exploitation can lead to a partial loss of integrity and availability (VI:L/VA:L) by allowing an attacker to write data past the end of an intended buffer. Affected versions include the 7.4.x, 7.0.x, and 6.1.x branches; users should update to versions 7.7.0, 7.3.1.3, or the latest 6.1.x patch respectively.

Affected products

RTI Connext Professional 7.4.0 before 7.7.0, 7.0.0 before 7.3.1.3, 6.1.0 before 6.1.*

Timeline

2026-06-17: disclosed
2026-06-17: advisory

References

https://www.rti.com/vulnerabilities/

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