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PatchSiren cyber security CVE debrief

CVE-2026-2467 RTI CVE debrief

A Heap-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Variables and Tags. This issue affects Connext Professional: 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.*, from 5.3.0 before 5.3.*, from 5.2.0 before 5.2.*, from 5.0.0 before 5.1.*. The vulnerability can lead to potential system compromise and data breaches if exploited. Defenders should assess potential exposure and impact on systems using RTI Connext Professional, especially those with versions between 5.0.0 and 7.7.0.

Vendor
RTI
Product
Connext Professional
CVSS
CRITICAL 9.2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-09-22
Advisory published
2026-06-17
Advisory updated
2026-09-22

Who should care

Defenders and administrators of systems using RTI Connext Professional, especially those with versions between 5.0.0 and 7.7.0, should assess potential exposure and impact. This includes operators, platform administrators, vulnerability management teams, and security teams responsible for ensuring the security and integrity of systems utilizing RTI Connext Professional.

Why it matters

Defenders should prioritize verifying exposure and assessing potential impact on systems using RTI Connext Professional, especially those with versions between 5.0.0 and 7.7.0, due to a Heap-based Buffer Overflow vulnerability.

  • Verification of system exposure and potential impact on RTI Connext Professional versions between 5.0.0 and 7.7.0
  • Assessment of system vulnerability to Heap-based Buffer Overflow attacks
  • Monitoring for potential exploitation attempts or anomalies

Technical summary

The vulnerability is a Heap-based Buffer Overflow in RTI Connext Professional (Core Libraries) that allows Overflow Variables and Tags. Affected versions include those between 5.0.0 and 7.7.0. The vulnerability can be exploited to potentially execute arbitrary code or cause a denial-of-service condition. Defenders should prioritize verifying exposure and assessing potential impact on systems using RTI Connext Professional, especially those with versions between 5.0.0 and 7.7.0. Technical details are limited to CVE and NVD entries.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact on systems using RTI Connext Professional, especially those with versions between 5.0.0 and 7.7.0.

Recommended defensive actions

  • Verify system inventory for RTI Connext Professional versions between 5.0.0 and 7.7.0
  • Assess potential impact on systems using affected versions
  • Monitor for vendor advisories or patches from RTI
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but specific exploitation or impact data is not available. The vulnerability is confirmed to exist in versions between 5.0.0 and 7.7.0 of RTI Connext Professional. Defenders should verify system exposure and assess potential impact. Evidence is limited to CVE and NVD entries, with no additional public sources available.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-2467 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-2467

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-2467 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-2467

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://www.rti.com/vulnerabilities/

    3f572a00-62e2-4423-959a-7ea25eff1638 - Mitigation, Vendor Advisory

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.