Stack-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers. 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 4.3x before 5.1.*.

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
RTI Connext Professional unaffected
Version Status Constraints
7.4.0 affected < 7.7.0.1
7.0.0 affected < 7.3.1.6
6.1.0 affected < 6.1.*
6.0.0 affected < 6.0.*
5.3.0 affected < 5.3.*
5.2.0 affected < 5.2.*
4.3x affected < 5.1.*

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Rti Subscribe
Connext Professional Subscribe

Project Subscriptions

Vendors Products
Rti Subscribe
Connext Professional Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.rti.com/vulnerabilities/#cve-2026-7866 cve-icon cve-icon
History

Tue, 22 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

 ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 22 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 22 Sep 2026 18:00:00 +0000

Type Values Removed Values Added
Description Stack-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers. 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 4.3x before 5.1.*.
Title Stack-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers.
First Time appeared Rti
Rti connext Professional
Weaknesses CWE-121
CPEs cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*
Vendors & Products Rti
Rti connext Professional
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: RTI

Published:

Updated: 2026-09-22T19:05:51.079Z

Reserved: 2026-05-05T13:54:48.225Z

Link: CVE-2026-7866

cve-icon Vulnrichment

Updated: 2026-09-22T18:52:40.316Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-22T18:17:19.940

Modified: 2026-09-22T19:37:36.747

Link: CVE-2026-7866

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-22T20:00:13Z

Weaknesses