CVE-2026-18460 Memory corruption in Connext Professional
An off-by-one error in RTI Connext Professional Core Libraries allows out-of-bounds writes, potentially leading to buffer overflows and code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18460?
CVE-2026-18460 is a medium-severity memory corruption vulnerability in RTI Connext Professional, published on 22 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Off-by-one Error, Out-of-bounds Write vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers. This issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.6.
Which versions are affected by CVE-2026-18460?
How do I fix CVE-2026-18460?
No fix has been published for CVE-2026-18460 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-18460 being exploited?
There is no known exploitation of CVE-2026-18460 in the wild and no public exploit code.
Sources
Also known as GHSA-ghvx-mjwc-5386.