CVE-2026-30803

CriticalCVSS 9.1

Published: 17/06/2026(UTC)Updated: 26/10/2026(UTC)Translated: 23/09/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.30%

22th percentile - higher than 22% of all known CVEs

Summary

An integer underflow (wrap or wraparound) vulnerability in RTI Connext Micro (Core Libraries) allows buffer overreads. It affects Connext Micro versions from 4.0.0 before 4.3.0.

Risk Assessment

Buffer overreads may lead to memory data leakage or application crashes in systems using RTI Connext Micro.

Recommendation

Update RTI Connext Micro to version 4.3.0 or later.

Other vulnerabilities in RTI Connext Micro

CVE-2026-30802High
Out-of-bounds Read vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buffers. This issue affects Connext Micro: from 4.0.0 before 4.3.0, from 2.4.5 before 2.4.*.

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS