CVE-2026-4374 describes an Improper Restriction of XML External Entity Reference (XXE) vulnerability impacting several services within RTI Connext Professional, including Routing, Observability Collector, Recording, Queueing, and Cloud Discovery Services. This vulnerability carries a High CVSS score of 8.8, indicating it can be exploited remotely by an unauthenticated attacker with low complexity, potentially leading to high impact on confidentiality and availability through serialized data external linking. There is currently no evidence of active exploitation, no public exploit code available in common repositories, and community discussion regarding this CVE remains minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.3.0, <= 5.3.1.45CPE matchmatch criteria | cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* | ||
>= 6.0.0, <= 6.0.1.40CPE matchmatch criteria | cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* | ||
>= 6.1.0, <= 6.1.2.27CPE matchmatch criteria | cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* | ||
>= 7.0.0, < 7.3.1.1CPE matchmatch criteria | cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* | ||
>= 7.4.0, < 7.7.0CPE matchmatch criteria | cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.