CVE-2026-18626

6.8

RTI · Connext Professional

An out-of-bounds read vulnerability in the RTI Connext Professional core libraries allows for buffer overread conditions, potentially leading to system instability or denial of service.

Executive summary

An out-of-bounds read vulnerability in RTI Connext Professional, specifically within the core libraries, poses a risk of service disruption due to buffer overread conditions.

Vulnerability

The vulnerability is an out-of-bounds read (CWE-125) occurring within the core libraries of the software. An authenticated local attacker with low privileges can trigger this condition to induce a buffer overread, which results in high availability impact.

Business impact

The exploitation of this vulnerability can lead to a denial of service, causing significant operational downtime for systems relying on the Connext Professional framework. While the CVSS score of 6.8 reflects a medium severity, the potential for service interruption in critical infrastructure environments necessitates proactive patching to maintain system reliability and uptime.

Remediation

Immediate Action: Update RTI Connext Professional to version 7.7.0.1 or 7.3.1.6 as appropriate for your current deployment branch.

Proactive Monitoring: Monitor system logs for unexpected application crashes or memory access errors that may indicate an exploitation attempt.

Compensating Controls: Ensure that access to the host environment is restricted to authorized personnel only, thereby limiting the ability of local users to interact with the vulnerable library functions.

Exploitation status

Public Exploit Available: No

Analyst recommendation

Organizations utilizing RTI Connext Professional should prioritize the transition to the specified patched versions to eliminate the risk of buffer overread. Given the nature of the software in real-time communication environments, testing the update in a staging environment prior to deployment is advised to ensure compatibility with existing configurations.

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History

  1. Analyst report written

Sources