CVE-2026-7866: Stack-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers.
Published Sep 22, 2026
·Updated
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..
Affected Software
1 affected component
RTI Connext Professional>=7.4.0<7.7.0.1, >=7.0.0<7.3.1.6, >=6.1.0<6.1.*, >=6.0.0<6.0.*, >=5.3.0<5.3.*, >=5.2.0<5.2.*, >=4.3x<5.1.*
Event History
Sep 22, 2026
CVE Published
via MITRE·05:50 PM
Data Sourced
via MITRE·05:50 PM
DescriptionWeakness
Data Sourced
via NVD·06:17 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
Which releases should be used to remediate this issue?
For the 7.4.x line, the issue is fixed in 7.7.0.1 and later. For the 7.0.x line, it is fixed in 7.3.1.6 and later; the advisory also identifies affected legacy release families through 6.1.x, 6.0.x, 5.3.x, 5.2.x, and 4.3x through 5.1.x, without naming specific fixed patch releases for those branches.