CVE-2026-30803
Received Received - Intake

Integer Underflow Leading to Buffer Overread in RTI Connext Micro

Publication date: 2026-06-17

Last updated on: 2026-06-17

Assigner: RTI

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.

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Meta Information

Published
2026-06-17
Last Modified
2026-06-17
Generated
2026-07-08
AI Q&A
2026-06-17
EPSS Evaluated
2026-07-06
NVD
CVE-2026-30803
EUVD
EUVD-2026-37756

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
rti connext_micro From 4.0.0 (inc) to 4.3.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-191 The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

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Executive Summary

This vulnerability is an Integer Underflow (also known as Wrap or Wraparound) in the RTI Connext Micro Core Libraries. It allows overread buffers, meaning that the software may read more data than it should from memory due to the integer underflow condition. This issue affects versions of Connext Micro from 4.0.0 up to but not including 4.3.0.

Impact Analysis

The impact of this vulnerability is significant as indicated by its high CVSS score of 8.8. An attacker could exploit the integer underflow to cause the software to read beyond intended memory boundaries, potentially leading to information disclosure or other security issues. Since the vulnerability requires no privileges, user interaction, or authentication, it can be exploited remotely with low complexity.

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