Integer Overflow and Improper Access Control in RTI Connext Professional
CVE-2026-18462

7.3HIGH

Key Information:

Vendor

Rti

Status
Connext Professional
Vendor
CVE Published:
22 September 2026

What is CVE-2026-18462?

An integer overflow and improper access control vulnerability in RTI Connext Professional (Core Libraries) permits unauthorized manipulation of shared resources. This risk arises in specific versions of the Connext Professional software, specifically from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.6, and from 6.1.0 before 6.1.*. Organizations using these versions should take appropriate measures to mitigate potential risks.

Affected Version(s)

Connext Professional 7.4.0 < 7.7.0.1

Connext Professional 7.0.0 < 7.3.1.6

Connext Professional 6.1.0 < 6.1.*

References

https://www.rti.com/vulnerabilities/#cve-2026-18462

CVSS V4

Score:
7.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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