CVE-2021-38433 RTI Connext DDS Professional and Connext DDS Secure Stack-based Buffer Overflow
A local attacker can execute arbitrary code via a stack-based buffer overflow in RTI Connext DDS Professional and Secure.
- 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-2021-38433?
CVE-2021-38433 is a medium-severity memory corruption vulnerability in RTI Connext DDS Professional, published on 5 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
RTI Connext DDS Professional and Connext DDS Secure Versions 4.2x to 6.1.0 vulnerable to a stack-based buffer overflow, which may allow a local attacker to execute arbitrary code.
Weakness: CWE-121
Which versions are affected by CVE-2021-38433?
It affects 2 products.
Products include Rti Connext Professional, Rti Connext Secure.
How do I fix CVE-2021-38433?
No fix has been published for CVE-2021-38433 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-2021-38433 being exploited?
There is no known exploitation of CVE-2021-38433 in the wild and no public exploit code.
Other vulnerabilities in RTI Connext DDS 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-2026-7300 Memory corruption in Connext Professional
- CVE-2025-14543 XML external entity in Connext Professional
Sources
Also known as GHSA-4m3p-w658-prrc.