Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Routing Service,Observability Collector,Recording Service,Queueing Service,Cloud Discovery Service) allows Serialized Data External Linking, Data Serializat...

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Summary

CVECVE-2026-4374
StatePUBLISHED
AssignerRTI
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-01 02:16:03 UTC
Updated2026-04-01 14:23:37 UTC
DescriptionImproper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Routing Service,Observability Collector,Recording Service,Queueing Service,Cloud Discovery Service) allows Serialized Data External Linking, Data Serializat...

Risk And Classification

Primary CVSS: v4.0 8.8 HIGH from 3f572a00-62e2-4423-959a-7ea25eff1638

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

EPSS: 0.000370000 probability, percentile 0.109460000 (date 2026-04-01)

Problem Types: CWE-611 | CWE-611 CWE-611 Improper Restriction of XML External Entity Reference

VersionSourceTypeScoreSeverityVector
4.03f572a00-62e2-4423-959a-7ea25eff1638Secondary8.8HIGHCVSS: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/C...
4.0CNACVSS8.8HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
4.0CNACVSS7HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
None
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA RTI Connext Professional affected 7.4.0 7.7.0 custom Not specified
CNA RTI Connext Professional affected 7.1.0 7.3.1.1 custom Not specified
CNA RTI Connext Professional affected 6.1.0 6.1.* custom Not specified
CNA RTI Connext Professional affected 6.0.0 6.0.* custom Not specified
CNA RTI Connext Professional affected 5.3.0 5.3.* custom Not specified

References

ReferenceSourceLinkTags
www.rti.com/vulnerabilities 3f572a00-62e2-4423-959a-7ea25eff1638 www.rti.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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