CVE-2026-18461 PUBLISHED

Use of Externally-Controlled Format String vulnerability in RTI Connext Professional (Core Libraries) allows Format String Injection.

Assigner: RTI
Reserved: 31.07.2026 Published: 22.09.2026 Updated: 22.09.2026

Use of Externally-Controlled Format String vulnerability in RTI Connext Professional (Core Libraries) allows Format String Injection. This issue affects Connext Professional: from 7.5.0 before 7.7.0.1, from 7.3.0.10 before 7.3.1.6.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 9.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	High	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	RTI
Product	Connext Professional
Versions	Default: unaffected affected from 7.5.0 to 7.7.0.1 (excl.) affected from 7.3.0.10 to 7.3.1.6 (excl.)

References

https://www.rti.com/vulnerabilities/#cve-2026-18461

Problem Types

CWE-134 Use of Externally-Controlled Format String CWE

Impacts

CAPEC-135 Format String Injection