CVE-2026-2467 Memory corruption in Connext Professional

Critical 9.2 Published 17 Jun 2026 Updated 22 Sep 2026

Heap-based buffer overflow in RTI Connext Professional Core Libraries allows attackers to cause denial of service or execute arbitrary code.

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-2026-2467?

CVE-2026-2467 is a critical memory corruption vulnerability in RTI Connext Professional, published on 17 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Heap-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Variables and Tags. This issue affects Connext Professional: from 7.4.0 before 7.7.0, from 7.0.0 before 7.3.1.3, from 6.1.0 before 6.1.*, from 6.0.0 before 6.0.*, from 5.3.0 before 5.3.*, from 5.2.0 before 5.2.*, from 5.0.0 before 5.1.*.

Weakness: CWE-122

Which versions are affected by CVE-2026-2467?

It affects 1 product.

Products include Rti Connext Professional.

How do I fix CVE-2026-2467?

No fix has been published for CVE-2026-2467 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-2026-2467 being exploited?

There is no known exploitation of CVE-2026-2467 in the wild and no public exploit code.

Sources

Also known as GHSA-8c42-w55q-ghcx.