Heap-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 5.2.3 before 5.2.*.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

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.*
5.2.3 affected < 5.2.*

No data.

No data.

No data.

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-2026-18457 cve-icon cve-icon
History

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

Type Values Removed Values Added
Description Heap-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 5.2.3 before 5.2.*.
Title Heap-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers.
First Time appeared Rti
Rti connext Professional
Weaknesses CWE-122
CPEs cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*
Vendors & Products Rti
Rti connext Professional
References
Metrics cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: RTI

Published:

Updated: 2026-09-22T18:48:54.400Z

Reserved: 2026-07-31T07:28:25.781Z

Link: CVE-2026-18457

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-22T18:17:11.487

Modified: 2026-09-22T18:17:11.487

Link: CVE-2026-18457

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses