RTI Connext Professional Multiple Flaws

XML External Entity (XXE) injection in RTI Connext Professional routing and service components allows remote unauthenticated attackers to exfiltrate sensitive data and trigger denial of service conditions. Affects multiple product families (Routing Service, Observability Collector, Recording Service, Queueing Service, Cloud Discovery Service) across versions 5.3.0 through 7.6.x. CVSS 8.8 (High) with network vector and no authentication required. EPSS probability remains low (0.04%, 11th percentile) with no confirmed active exploitation per CISA. Vendor patch available via RTI advisory.

Buffer over-read vulnerability in RTI Connext Professional Core Libraries allows unauthenticated remote attackers to read beyond allocated buffer boundaries, potentially leaking sensitive data. Affected versions span multiple major release lines: 7.4.0-7.6.x, 7.0.0-7.3.0.x, 6.1.0-6.1.x, 6.0.0-6.0.x, 5.3.0-5.3.x, and 4.3x-5.2.x. The CVSS 6.3 score reflects low confidentiality impact with network-based attack surface; no public exploit has been identified at time of analysis, and this vulnerability is not listed in CISA's Known Exploited Vulnerabilities catalog.