CVE-2026-4374: Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Routing Service,Observability Collector,Recording…

PriorityP348critical9.1CVSS 3.1

AVNACLPRNUINSUCHINAH

EPSS

0.24%

14.3th percentile

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...

Affected

9 ranges

Vendor	Product	Version range	Fixed in
rti	connext_professional	>= 5.3.0 < 5.3.*	5.3.*
rti	connext_professional	5.3.0 – 5.3.1.45	—
rti	connext_professional	>= 6.0.0 < 6.0.*	6.0.*
rti	connext_professional	6.0.0 – 6.0.1.40	—
rti	connext_professional	>= 6.1.0 < 6.1.2.34	6.1.2.34
rti	connext_professional	6.1.0 – 6.1.2.27	—
rti	connext_professional	>= 7.0.0 < 7.3.1.1	7.3.1.1
rti	connext_professional	>= 7.1.0 < 7.3.1.1	7.3.1.1
rti	connext_professional	>= 7.4.0 < 7.7.0	7.7.0

CVSS provenance

nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

nvdv4.08.8HIGHCVSS: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/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

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