CVE-2026-3894 Out-of-bounds Read vulnerability in RTI Connext Professional (Core Libraries) allows Overread Buffers.
An out-of-bounds read in RTI Connext Professional Core Libraries allows attackers to read memory or cause denial of service.
- 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-2026-3894?
CVE-2026-3894 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
Out-of-bounds Read vulnerability in RTI Connext Professional (Core Libraries) allows Overread Buffers. 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-125
Which versions are affected by CVE-2026-3894?
It affects 1 product.
Products include Rti Connext Professional.
How do I fix CVE-2026-3894?
No fix has been published for CVE-2026-3894 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-2026-3894 being exploited?
There is no known exploitation of CVE-2026-3894 in the wild and no public exploit code.
Other vulnerabilities in RTI Connext Professional
Sources
Also known as GHSA-gfjf-3m4p-4qjc.