Quick answers
- Is CVE-2026-18461 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-18461 being exploited in the wild.
- How severe is CVE-2026-18461?
- Informational severity, published 22 September 2026.
- Which products and versions are affected?
- Rti Connext Professional 7.5.0 to 7.7.0.0, 7.3.0.10 to 7.3.1.5.
- Is there a fix for CVE-2026-18461?
- 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-2026-18461 attacked?
- It is attacked over the network or with local access, in a software library.
- Am I affected by CVE-2026-18461?
- 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
The Core Libraries component in RTI Connext Professional contains a use of externally-controlled format string vulnerability that enables format string injection attacks. An attacker with network access or local access to the system can inject format strings to read or write memory, leading to information disclosure or denial of service. RTI has released patches for affected versions (7.7.0.1 and later for the 7.5.x branch, 7.3.1.6 and later for the 7.3.x branch).
Affected products
- RTI Connext Professional 7.5.0 to 7.7.0.0, 7.3.0.10 to 7.3.1.5
Timeline
- 2026-09-22: disclosed