CVE-2026-7300 Memory corruption in Connext Professional
A buffer overflow in RTI Connext Professional's Web Integration Service allows attackers to cause crashes 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-2026-7300?
CVE-2026-7300 is a high-severity 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
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RTI Connext Professional (Web Integration Service) allows Filter Failure through Buffer Overflow. This issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.3, from 6.1.2 before 6.1.*.
Weakness: CWE-120
Which versions are affected by CVE-2026-7300?
It affects 1 product.
Products include Rti Connext Professional.
How do I fix CVE-2026-7300?
No fix has been published for CVE-2026-7300 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-2026-7300 being exploited?
There is no known exploitation of CVE-2026-7300 in the wild and no public exploit code.
Other vulnerabilities in RTI Connext Professional
- CVE-2026-2467 Memory corruption in Connext Professional
- CVE-2026-3894 Out-of-bounds Read vulnerability in RTI Connext Professional (Core Libraries) allows Overread Buffers.
- CVE-2024-52057 SQL injection in Connext Professional
- CVE-2025-14543 XML external entity in Connext Professional
- CVE-2026-4374 XML external entity in Connext Professional
Sources
Also known as GHSA-h57p-58j8-7xg6.