CVE-2026-30803 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00276.

Exploitation none

Automatable yes

Technical Impact total

Vendors	Products
Rti	Connext Micro

No data.

No data.

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References

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

History

Thu, 18 Jun 2026 04:45:00 +0000

Type	Values Removed	Values Added
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.
Title		Integer Underflow (Wrap or Wraparound) vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buffers.
First Time appeared		Rti Rti connext Micro
Weaknesses		CWE-191
CPEs		cpe:2.3:a:rti:connext_micro::::::::
Vendors & Products		Rti Rti connext Micro
References		https://www.rti.com/vulnerabilities/#cve-2026-30803
Metrics		cvssV4_0 `{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: RTI

Published: 2026-06-17T17:21:11.644Z

Updated: 2026-06-17T17:58:17.787Z

Reserved: 2026-03-05T14:43:37.192Z

Link: CVE-2026-30803

Vulnrichment

Updated: 2026-06-17T17:58:13.988Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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