CVE-2020-9049
Johnson Controls
- Published
- 19 November 2020
- Last modified
- 17 June 2026
- CVSS
- 5.3 v3.1
- Severity
- medium
- EPSS
- 0.5% (43th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- CWE-285, CWE-287
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
A vulnerability in specified versions of American Dynamics victor Web Client and Software House C•CURE Web Client could allow an unauthenticated attacker on the network to create and sign their own JSON Web Token and use it to execute an HTTP API Method without the need for valid authentication/authorization. Under certain circumstances, this could be used by an attacker to impact system availability by conducting a Denial of Service attack.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 0.5% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| Victor Web | Johnson Controls | unknown | <= 5.6 |
References
Vendor advisory and patch
- https://www.johnsoncontrols.com/cyber-solutions/security-advisories
- https://www.johnsoncontrols.com/cyber-solutions/security-advisories
- https://us-cert.cisa.gov/ics/advisories/icsa-20-324-01
- https://us-cert.cisa.gov/ics/advisories/icsa-20-324-01
- https://us-cert.cisa.gov/ics/advisories/icsa-20-324-01
- https://us-cert.cisa.gov/ics/advisories/icsa-20-324-01
- https://us-cert.cisa.gov/ics/advisories/icsa-20-324-01
- https://us-cert.cisa.gov/ics/advisories/icsa-20-324-01
- https://us-cert.cisa.gov/ics/advisories/icsa-20-324-01
- https://us-cert.cisa.gov/ics/advisories/icsa-20-324-01
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.