CVE-2020-9044

Metasys Improper Restriction of XML External Entity Reference

CRITICAL

9.1

CVSS Score

Published: March 10, 2020 at 07:28 PM UTC

Updated: June 17, 2026 at 03:27 AM UTC

20 products affected across 1 vendorMetasys Extended Application and Data ServerMetasys Application and Data ServerMetasys Open Application Server

Using Metasys Application and Data Server (ADS, ADS-Lite) by Johnson Controls?

Get instant alerts when new vulnerabilities affect Metasys Application and Data Server (ADS, ADS-Lite) - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

CRITICAL9.1

Exploit prediction

EPSS 1%

Description

XXE vulnerability exists in the Metasys family of product Web Services which has the potential to facilitate DoS attacks or harvesting of ASCII server files. This affects Johnson Controls' Metasys Application and Data Server (ADS, ADS-Lite) versions 10.1 and prior; Metasys Extended Application and Data Server (ADX) versions 10.1 and prior; Metasys Open Data Server (ODS) versions 10.1 and prior; Metasys Open Application Server (OAS) version 10.1; Metasys Network Automation Engine (NAE55 only) versions 9.0.1, 9.0.2, 9.0.3, 9.0.5, 9.0.6; Metasys Network Integration Engine (NIE55/NIE59) versions 9.0.1, 9.0.2, 9.0.3, 9.0.5, 9.0.6; Metasys NAE85 and NIE85 versions 10.1 and prior; Metasys LonWorks Control Server (LCS) versions 10.1 and prior; Metasys System Configuration Tool (SCT) versions 13.2 and prior; Metasys Smoke Control Network Automation Engine (NAE55, UL 864 UUKL/ORD-C100-13 UUKLC 10th Edition Listed) version 8.1.