Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-14543

Severity CVSS v4.0:
HIGH
Type:
CWE-611 Improper Restriction of XML External Entity Reference ('XXE')
Publication date:
30/04/2026
Last modified:
04/05/2026

Description

Improper Restriction of XML External Entity Reference vulnerability in 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 4.3x before 5.2.*.

Impact

Vector 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 CVSS v4.0 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: 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

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): High
Integrity (VI): None
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0
8.80
Severity 4.0
HIGH
Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.10 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): High

Base Score 3.x
9.10
Severity 3.x
CRITICAL

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* 4.3.0 (including) 5.2.3 (including)
cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* 5.3.0 (including) 5.3.1.45 (including)
cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* 6.0.0 (including) 6.0.1.40 (including)
cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* 6.1.0 (including) 6.1.2.27 (including)
cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* 7.0.0 (including) 7.3.1.1 (excluding)
cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* 7.4.0 (including) 7.7.0 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools