Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Core Libraries) allows Serialized Data External Linking.

published 2026-04-30 6 mo ago modified 2026-10-07 33 d ago also EUVD-2025-209595

cvss: 9.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits: 0; none known

Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Core Libraries) allows Serialized Data External Linking. This issue affects Connext Professional: from 7.4.0 before 7.7.0, from 7.0.0 before 7.3.1.1, from 6.1.0 before 6.1.*, from 6.0.0 before 6.0.*, from 5.3.0 before 5.3.*, from 5.2.0 before 5.2.*, from 4.3x before 5.1.*.

Patch / fix

fixed in 1

RTI Connext Professional 7.3.1.1, 7.7.0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 6 mo ago (2026-04-30)

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	8.8	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
CNA	4.0	6.9	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
CNA	4.0	8.8	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
NVD	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected products

RTI Connext Professional

Classification

Weakness

CWE-611 Improper Restriction of XML External Entity Reference

References

rti.com /vulnerabilities/#cve-2025-14543
vendor-advisory

Sources

CVE List CVE-2025-14543
NVD CVE-2025-14543

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Summary