CVE-2026-7866
Received
Received - Intake
Stack-based Buffer Overflow in RTI Connext Professional
Vulnerability report for CVE-2026-7866, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-22
Last updated on: 2026-09-22
Assigner: RTI
Description
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.*.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| rti | connext_professional | From 7.4.0 (inc) to 7.7.0.1 (exc) |
| rti | connext_professional | From 7.0.0 (inc) to 7.3.1.6 (exc) |
| rti | connext_professional | From 6.1.0 (inc) to 6.1.* (exc) |
| rti | connext_professional | From 6.0.0 (inc) to 6.0.* (exc) |
| rti | connext_professional | From 5.3.0 (inc) to 5.3.* (exc) |
| rti | connext_professional | From 5.2.0 (inc) to 5.2.* (exc) |
| rti | connext_professional | From 4.3x (inc) to 5.1.* (exc) |
| rti | connext_professional | From 4.3 (inc) to 5.1.* (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-121 | A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). |
