PT-2026-50508 · Rti · Rti Connext Micro

Joshua J. Drake · CVE-2026-30803 · Published 2026-06-17 · Updated 2026-07-08

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Name of the Vulnerable Software and Affected Versions RTI Connext Micro versions 4.0.0 through 4.2.0

Description An integer underflow (wrap or wraparound) in the Core Libraries can lead to buffer overreads. An integer underflow occurs when an arithmetic operation results in a value smaller than the minimum value the variable can hold, causing it to wrap around to a very large positive number.

Recommendations Update to version 4.3.0.

Fix

Integer Underflow

Weakness Enumeration

CWE-191

Related Identifiers

CVE-2026-30803

Affected Products

Rti Connext Micro

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-30803 · Security Note
• https://rti.com/vulnerabilities/#cve-2026-30803 · Vendor Advisory
• https://twitter.com/CVEnew/status/2067351005205762208 · Twitter Post
• https://t.me/cveNotify/191114 · Telegram Post
• https://t.me/CVEtracker/57153 · Telegram Post
• https://t.me/cveNotify/170029 · Telegram Post