CVE-2026-2675 RTI CVE debrief

Who should care

Defenders responsible for RTI Connext Professional deployments, particularly those using versions 5.3.0 and later, should assess exposure and verify the authenticity of data sources.

Why it matters

The CVE-2026-2675 vulnerability in RTI Connext Professional (Security Plugins) requires defenders to verify data source authenticity, assess exposure, and update versions to prevent potential data tampering and exploitation.

• Verification of data source authenticity is required to prevent potential data tampering
• Assessment of exposure in Connext Professional deployments is necessary to determine potential vulnerability
• Updating Connext Professional versions to ensure they are up-to-date and patched is crucial to prevent exploitation

Technical summary

The vulnerability is caused by a missing authentication mechanism for critical functions in RTI Connext Professional (Security Plugins), which allows an attacker to fake the source of data. The affected versions are from 7.4.0 before 7.7.0, from 7.0.0 before 7.3.1.3, from 6.1.0 before 6.1.*, from 6.0.0 before 6.0.*, and from 5.3.0 before 5.3.*. The vulnerability requires defenders to verify data source authenticity, assess exposure, and update versions to prevent potential data tampering and exploitation. Defenders should prioritize verifying the authenticity of data sources and assessing exposure in their Connext Professional deployments, particularly in versions 5.3.0 and later.

Defensive priority

Defenders should prioritize verifying the authenticity of data sources and assessing exposure in their Connext Professional deployments, particularly in versions 5.3.0 and later.

Recommended defensive actions

• Verify the authenticity of data sources in Connext Professional deployments
• Assess exposure in Connext Professional versions 5.3.0 and later
• Review and update Connext Professional versions to ensure they are up-to-date and patched
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD detail page provide information on the vulnerability, including its description, affected versions, and CVSS score. The official CVE Program record and NVD detail page offer source-provided CVE metadata and source-specific vulnerability assessment. Additional information from the CVE Program record and NVD detail page should be reviewed to understand the vulnerability's impact and potential exposure. The CVE record was published on 2026-06-17T18:17:42.707Z and has not been modified since then.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.