CVE-2026-30803 Integer Underflow (Wrap or Wraparound) vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buffers.
An integer underflow in RTI Connext Micro allows attackers to overread buffers, potentially exposing sensitive memory contents.
- 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-2026-30803?
CVE-2026-30803 is a high-severity vulnerability in RTI Connext Micro, published on 17 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Integer Underflow (Wrap or Wraparound) vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buffers. This issue affects Connext Micro: from 4.0.0 before 4.3.0.
Weakness: CWE-191
Which versions are affected by CVE-2026-30803?
It affects 1 product.
Products include Rti Connext Micro.
How do I fix CVE-2026-30803?
No fix has been published for CVE-2026-30803 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-30803 being exploited?
There is no known exploitation of CVE-2026-30803 in the wild and no public exploit code.
Other vulnerabilities in RTI Connext Micro
Sources
Also known as GHSA-gjcv-h8fc-5668.