01 Record
CVE-2020-9044
Metasys Improper Restriction of XML External Entity Reference
HighPUBLISHEDCNA: jci
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
02 Description
Metasys Improper Restriction of XML External Entity Reference
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.28% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 69.7% of scored records. A rank, not a probability.
- NVD base score
- 9.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-03-10 19:28Z6 YR AGO
- Last updated
- 2024-08-04 10:19Z2 YR AGO
- Reserved
- 2020-02-18
- Assigning CNA
- jci
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-611Improper Restriction of XML External Entity ReferenceBase
- Data version
- 5.1
- Document digest
- 9908d0aeefda3c63833c7dcb96dbb0723aee9528bb50f9480941aef1633632c6
05 Affected products
VendorProductVersionsPlatforms
Johnson ControlsMetasys Network Automation Engine (NAE55 only)versions 9.0.1, 9.0.2, 9.0.3, 9.0.5, 9.0.6—
Johnson ControlsMetasys Network Integration Engine (NIE55/NIE59)versions 9.0.1, 9.0.2, 9.0.3, 9.0.5, 9.0.6—
Johnson ControlsMetasys Smoke Control Network Automation Engine (NAE55, UL 864 UUKL/ORD-C100-13 UUKLC 10th Edition Listed)version 8.1—
06 References
- www.johnsoncontrols.comhttps://www.johnsoncontrols.com/cyber-solutions/security-advisories
- www.us-cert.govICS-CERT Advisoryhttps://www.us-cert.gov/ics/advisories/icsa-20-070-05
07 Remediation
Johnson Controls has developed a patch to address this issue. Customers should contact their local branch office for remediation.