CVE-2025-10183: Teccom Tecconnect

Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days.

A blind XML External Entity (XXE) injection in the OpenMessaging webservice in TecCom TecConnect 4.1 allows an unauthenticated attacker to exfiltrate arbitrary files to an attacker-controlled server. TecConnect 4.1 is considered end-of-life as of December 2023. Users are advised to upgrade to TecCom Connect 5.

Affected products

• Teccom Tecconnect: version 4.1 only

Published 2025-09-09. Last modified 2026-06-17.