CVE-2026-18462 Integer overflow in Connext Professional
An integer overflow and improper access control flaw in RTI Connext Professional allows attackers to manipulate shared resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18462?
CVE-2026-18462 is a high-severity vulnerability in RTI Connext Professional, published on 22 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Integer Overflow or Wraparound, Improper Access Control vulnerability in RTI Connext Professional (Core Libraries) allows Shared Resource Manipulation. This issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.6, from 6.1.0 before 6.1.*.
Which versions are affected by CVE-2026-18462?
How do I fix CVE-2026-18462?
No fix has been published for CVE-2026-18462 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-18462 being exploited?
There is no known exploitation of CVE-2026-18462 in the wild and no public exploit code.
Sources
Also known as GHSA-9743-6h37-2w2g.