CVE-2026-18459
High
Description
Incorrect Calculation vulnerability in RTI Connext Professional (Core Libraries) allows Abuse Existing Functionality. 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 4.1x before 5.1.*.
SeverityHigh
CVSS8.7
Exploit probability—
ProductConnext Professional
PublishedSep 22, 2026
First seenSep 22, 2026
Weakness typeCWE-682CWE-682
How to fix
Update
- RTI Connext Professional7.7.0.1, 7.3.1.6, 6.1.*, 6.0.*, 5.3.*, 5.2.*, 5.1.* or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| RTI Connext Professional | 7.4.0 ≤ v < 7.7.0.1, 7.0.0 ≤ v < 7.3.1.6, 6.1.0 ≤ v < 6.1.*, 6.0.0 ≤ v < 6.0.*, 5.3.0 ≤ v < 5.3.*, 5.2.0 ≤ v < 5.2.*, 4.1x ≤ v < 5.1.* | 7.7.0.1, 7.3.1.6, 6.1.*, 6.0.*, 5.3.*, 5.2.*, 5.1.* |
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