CVE-2025-14543
Improper Restriction of XML External Entity Reference vulnerability in Connext Professional (Core Libraries) allows Serialized Data External Linking.
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.*.
INFO
Published Date :
April 30, 2026, 4:16 p.m.
Last Modified :
May 4, 2026, 1:02 p.m.
Remotely Exploit :
Yes !
Source :
3f572a00-62e2-4423-959a-7ea25eff1638
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | HIGH | 3f572a00-62e2-4423-959a-7ea25eff1638 | ||||
| CVSS 4.0 | MEDIUM | 3f572a00-62e2-4423-959a-7ea25eff1638 | ||||
| CVSS 4.0 | HIGH | 3f572a00-62e2-4423-959a-7ea25eff1638 |
Solution
- Update Connext Professional to a version after 7.7.0.
- Update Connext Professional to a version after 7.3.1.1.
- Update Connext Professional to a version after 6.1.*.
- Update Connext Professional to a version after 6.0.*.
Public PoC/Exploit Available at Github
CVE-2025-14543 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-14543.
| URL | Resource |
|---|---|
| https://www.rti.com/vulnerabilities/#cve-2025-14543 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-14543 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-14543
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Claude Code skill: scan project dependencies for CVEs in 8 seconds. OSV.dev backend + VulnPulse live-feed cross-reference. Polyglot, AI-prioritized.
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-14543 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-14543 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 04, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Added CPE Configuration OR *cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* versions from (including) 5.3.0 up to (including) 5.3.1.45 *cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (including) 6.0.1.40 *cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* versions from (including) 6.1.0 up to (including) 6.1.2.27 *cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (excluding) 7.3.1.1 *cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* versions from (including) 7.4.0 up to (excluding) 7.7.0 *cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* versions from (including) 4.3.0 up to (including) 5.2.3 Added Reference Type RTI: https://www.rti.com/vulnerabilities/#cve-2025-14543 Types: Vendor Advisory -
New CVE Received by 3f572a00-62e2-4423-959a-7ea25eff1638
Apr. 30, 2026
Action Type Old Value New Value Added 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.*. Added CVSS V4.0 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 Added CWE CWE-611 Added Reference https://www.rti.com/vulnerabilities/#cve-2025-14543