# CVE-2026-11388: RTI Connext Professional double free in core libraries

Source: https://junglewise.ai/threats/cve-2026-11388-double-free-vulnerability-in-rti-connext-professional-core  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-22. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-11388 · Severity: info · Published 2026-09-22

RTI Connext Professional is a data distribution middleware used to connect applications and devices in real-time systems. A double free vulnerability in its core libraries could allow an attacker to manipulate files or cause unexpected behavior, potentially compromising the integrity of systems relying on Connext for inter-process communication.

Technologies: [Rti Connext Professional](https://junglewise.ai/threats/technologies/connext-professional). Vendors: [Rti](https://junglewise.ai/threats/vendors/rti).

## Quick answers

**Is CVE-2026-11388 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-11388 being exploited in the wild.

**How severe is CVE-2026-11388?** Informational severity, published 22 September 2026.

**Which products and versions are affected?** Rti Connext Professional 7.4.0 to 7.7.0.0, 7.1.0 to 7.3.1.5.

**Is there a fix for CVE-2026-11388?** 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-2026-11388 attacked?** It is in a software library.

**Am I affected by CVE-2026-11388?** Check whether you run Rti Connext Professional 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

A double free vulnerability exists in the core libraries of RTI Connext Professional that enables file manipulation. The vulnerability affects versions 7.4.0 through 7.7.0.0 and 7.1.0 through 7.3.1.5, with patches available in 7.7.0.1 and 7.3.1.6 respectively. Exploitation requires the ability to trigger the vulnerable code path in the core libraries.

## Affected products

- RTI Connext Professional 7.4.0 to 7.7.0.0, 7.1.0 to 7.3.1.5

## Timeline

- 2026-09-22: disclosed

## References

- [https://www.rti.com/vulnerabilities/](https://www.rti.com/vulnerabilities/)

## Related threats

- [RTI Connext Professional use-after-free in Security Plugins](https://junglewise.ai/threats/cve-2026-8849-use-after-free-vulnerability-in-rti-connext-professional-security)
- [RTI Connext Professional stack-based buffer overflow in core libraries](https://junglewise.ai/threats/cve-2026-7866-stack-based-buffer-overflow-vulnerability-in-rti-connext)
- [RTI Connext Professional out-of-bounds read in core libraries](https://junglewise.ai/threats/cve-2026-18626-out-of-bounds-read-vulnerability-in-rti-connext-professional-core)
- [RTI Connext Professional integer overflow in Core Libraries](https://junglewise.ai/threats/cve-2026-18462-integer-overflow-or-wraparound-improper-access-control)
- [RTI Connext Professional format string injection in Core Libraries](https://junglewise.ai/threats/cve-2026-18461-use-of-externally-controlled-format-string-vulnerability-in-rti)