CVE-2026-18459

Incorrect Calculation vulnerability in RTI Connext Professional (Core Libraries) allows Abuse Existing Functionality.

State: Published
Severity: 8.7 High
Published: Sep 22, 2026
Updated: Sep 22, 2026
Reserved: Jul 31, 2026

Description

Incorrect Calculation vulnerability in RTI Connext Professional (Core Libraries) allows Abuse Existing Functionality. This issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.6, from 6.1.0 before 6.1.*, from 6.0.0 before 6.0.*, from 5.3.0 before 5.3.*, from 5.2.0 before 5.2.*, from 4.1x before 5.1.*.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	RTI

Weaknesses

CWE-682 Incorrect Calculation

Affected Products

Product	Versions
Connext ProfessionalRTI	7.4.0 to before 7.7.0.1Affected 7.0.0 to before 7.3.1.6Affected 6.1.0 to before 6.1.Affected 6.0.0 to before 6.0.Affected 5.3.0 to before 5.3.Affected 5.2.0 to before 5.2.Affected 4.1x to before 5.1.*Affected

References

https://www.rti.com/vulnerabilities/#cve-2026-18459

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.