CVE-2026-4374

HIGH EPSS 14.3%
Published Apr 1, 20262mo ago · Modified Jun 17, 20261w ago
8.8 CVSS 4.0
High
Find Similar
Published Apr 1, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Cloud Discovery Service, Recording Service, Routing Service, Queueing Service, Observability Collector) allows Serialized Data External Linking, Data Serialization External Entities Blowup.<p>This issue affects Connext Professional: from 7.4.0 before 7.7.0, from 7.1.0 before 7.3.1.1, from 6.1.0 before 6.1.2.34, from 6.0.0 before 6.0.*, from 5.3.0 before 5.3.*.</p>

CVSS Details

Base Score
8.8
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
14.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-611

Affected Products 5

VendorProductVersionRange
rticonnext_professional*≥5.3.0  –  ≤5.3.1.45
rticonnext_professional*≥6.0.0  –  ≤6.0.1.40
rticonnext_professional*≥6.1.0  –  ≤6.1.2.27
rticonnext_professional*≥7.0.0  –  <7.3.1.1
rticonnext_professional*≥7.4.0  –  <7.7.0

References 1

  • rti.com https://www.rti.com/vulnerabilities/#cve-2026-4374
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.