CVE-2026-30803

CriticalCVSS 9.1

Published: 17/06/2026(UTC)Updated: 08/07/2026(UTC)Translated: 09/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.28%

19th percentile - higher than 19% of all known CVEs

Summary

An integer underflow (wrap or wraparound) vulnerability in RTI Connext Micro (Core Libraries) allows overread of buffers. This issue affects Connext Micro versions from 4.0.0 before 4.3.0.

Risk Assessment

An attacker could exploit this vulnerability to read data beyond the allocated buffer, potentially leading to disclosure of sensitive information or system instability.

Recommendation

Immediately update RTI Connext Micro to version 4.3.0 or later, which includes a fix for this vulnerability.

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.