Integer Underflow Vulnerability in RTI Connext Micro by RTI
CVE-2026-30803

8.8HIGH

Key Information:

Vendor

Rti

Status
Connext Micro
Vendor
CVE Published:
17 June 2026

What is CVE-2026-30803?

The vulnerability in RTI Connext Micro involves an integer underflow issue within the core libraries. This flaw enables potential attackers to exploit overread buffers. Specifically, it affects versions from 4.0.0 up to but not including 4.3.0, which may expose applications to security risks. Users of the affected versions are advised to implement updates and remediate this weakness promptly to ensure the integrity and security of their systems.

Affected Version(s)

Connext Micro 4.0.0 < 4.3.0

References

https://www.rti.com/vulnerabilities/#cve-2026-30803

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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