Is CVE-2026-30802 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-30802 being exploited in the wild.

How severe is CVE-2026-30802?

Informational severity, with a CVSS score of 8.8, published 17 June 2026.

Which products and versions are affected?

Rti Connext Micro (Core Libraries) 4.0.0 before 4.3.0.

Is there a fix for CVE-2026-30802?

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-2026-30802 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-30802?

Check whether you run Rti Connext Micro (Core Libraries) at an affected version. 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-2026-30802: RTI Connext Micro out-of-bounds read in Core Libraries

CVE-2026-30802 · Severity: info · CVSS 8.8 · Published 2026-06-17

A security vulnerability exists in the core libraries of RTI Connext Micro, a communication framework used in embedded and resource-constrained systems. An attacker could exploit this flaw to cause a system crash or service disruption by sending specially crafted data. This could lead to a loss of availability for critical real-time applications relying on this software for data distribution.

Vendors: Rti.

Quick answers

Is CVE-2026-30802 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-30802 being exploited in the wild.
How severe is CVE-2026-30802?: Informational severity, with a CVSS score of 8.8, published 17 June 2026.
Which products and versions are affected?: Rti Connext Micro (Core Libraries) 4.0.0 before 4.3.0.
Is there a fix for CVE-2026-30802?: 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-2026-30802 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-30802?: Check whether you run Rti Connext Micro (Core Libraries) at an affected version. 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 read vulnerability (CWE-125) exists in the Core Libraries of RTI Connext Micro versions 4.0.0 through 4.2.x. The flaw is triggered when the software processes malformed input, leading to a buffer overread. An unauthenticated attacker can exploit this over the network without user interaction. According to the vendor's CVSS 4.0 assessment, the primary impact is high availability loss (VA:H), likely resulting in a crash of the affected process. The vulnerability is addressed in version 4.3.0.

Affected products

RTI Connext Micro (Core Libraries) 4.0.0 before 4.3.0

Timeline

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

References

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

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