No exploitation reported

CVE-2020-9044

No exploitation reported by the sources we read.

Published2020-03-10
WeaknessCWE-611

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2020-03-1020:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-9044?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-9044?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Johnsoncontrols nae55 firmwareversion to verify

Branch	Affected	Fixed in	Source
9.0	= 9.0.1	no fix published	NVD
9.0	= 9.0.2	no fix published	NVD
9.0	= 9.0.3	no fix published	NVD
9.0	= 9.0.5	no fix published	NVD
9.0	= 9.0.6	no fix published	NVD
8.1	= 8.1	no fix published	NVD

Johnsoncontrols nie55 firmwareversion to verify

Branch	Affected	Fixed in	Source
9.0	= 9.0.1	no fix published	NVD
9.0	= 9.0.2	no fix published	NVD
9.0	= 9.0.3	no fix published	NVD
9.0	= 9.0.5	no fix published	NVD
9.0	= 9.0.6	no fix published	NVD

Johnsoncontrols nie59 firmwareversion to verify

Branch	Affected	Fixed in	Source
9.0	= 9.0.1	no fix published	NVD
9.0	= 9.0.2	no fix published	NVD
9.0	= 9.0.3	no fix published	NVD
9.0	= 9.0.5	no fix published	NVD
9.0	= 9.0.6	no fix published	NVD

10 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-20-070-05 CISA10 known affected
Johnson Controls Metasys
LonWorks Control Server (LCS): Release 10.1 and prior · Open Application Server (OAS): Release 10.1 · Extended Application and Data Server (ADX): Release 10.1 and prior · +7 more

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-20-070-05 · 10 productsUsers should contact a branch office for remediation. For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2020-3 v1
Mitigation from the vendor CISA ICSA-20-070-05 · 10 productsFor questions concerning this product, contact Johnson Controls Global Product Security; email: productsecurity@jci.com icsa-20-070-05.json,vendor_fix,Do not click web links or open unsolicited attachments in email messages.,empty icsa-20-070-05.json,vendor_fix,Refer to Recognizing and Avoiding Ema…

Advisories and patches

www.johnsoncontrols.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CNACVSS 3.17.5read 2026-10-23
NVDCVSS 3.19.1read 2026-10-23
NVDCVSS 2.06.4read 2026-10-23
CNAweakness (CWE)CWE-611read 2026-10-23
NVDweakness (CWE)CWE-611read 2026-10-23
FIRST EPSSEPSS score1.3 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Published: 2020-03-10
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2020-9044?

Is CVE-2020-9044 actively exploited?

Active exploitation of CVE-2020-9044 has not been confirmed. Its EPSS score was 1.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-9044?

CVE-2020-9044 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

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