CVE-2026-18457

EUVD-2026-84612
Heap-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 5.2.3 before 5.2.*.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
RTICNA
8.3 HIGH
NETWORK
LOW
NONE
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
rticonnext_professional
7.4.0 ≤
𝑥
< 7.7.0.1
CNA
rticonnext_professional
7.0.0 ≤
𝑥
< 7.3.1.6
CNA
rticonnext_professional
6.1.0 ≤
𝑥
< 6.2.0
CNA
rticonnext_professional
6.0.0 ≤
𝑥
< 6.1.0
CNA
rticonnext_professional
5.3.0 ≤
𝑥
< 5.4.0
CNA
rticonnext_professional
5.2.3 ≤
𝑥
< 5.3.0
CNA
Common Weakness Enumeration
References
https://www.rti.com/vulnerabilities/#cve-2026-18457