CVE-2026-18458

MEDIUM CVSS 4.0: 6.8 EPSS 0.10%
Updated Sep 22, 2026
Out-of-bounds
Parameter Value
CVSS 6.8 (MEDIUM)
Affected Versions before 7.7.0.1
Type CWE-125 (Out-of-bounds Read), CWE-685, CWE-843 (Type Confusion)
Vendor Out-of-bounds
Public PoC No

Out-of-bounds Read, Function Call With Incorrect Number of Arguments, Access of Resource Using Incompatible Type ('Type Confusion') vulnerability in RTI Connext Professional (Core Libraries) allows Overread Buffers. This issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.3.0 before 7.3.1.6, from 6.1.2.21 before 6.1.*.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v4.0