Connext Professional vulnerability

Buffer Over-read, Off-by-one Error vulnerability in RTI Connext Professional (Core Libraries) allows File Manipulation, Overread Buffers. This issue affects Connext Professional: from 7.4.0 before 7.6.0, from 7.0.0 before 7.3.0.8, from 6.1.0 before 6.1.2.26, from 6.0.0 before 6.0.1.43, from 5.3.0 before 5.3.*, from 5.2.0 before 5.2.*, from 4.4a before 5.1.*.

Published 23 Sep 2025Updated 22 Sep 20261 sources
CVSS 4.8

What happened

Buffer Over-read, Off-by-one Error vulnerability in RTI Connext Professional (Core Libraries) allows File Manipulation, Overread Buffers. This issue affects Connext Professional: from 7.4.0 before 7.6.0, from 7.0.0 before 7.3.0.8, from 6.1.0 before 6.1.2.26, from 6.0.0 before 6.0.1.43, from 5.3.0 before 5.3.*, from 5.2.0 before 5.2.*, from 4.4a before 5.1.*.

Affected versions

Connext Professional: 7.4.0 through before 7.6.0 (custom); 7.0.0 through before 7.3.0.8 (custom); 6.1.0 through before 6.1.2.26 (custom); 6.0.0 through before 6.0.1.43 (custom); 5.3.0 through before 5.3.* (custom); 5.2.0 through before 5.2.* (custom); 4.4a through before 5.1.* (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.