CVE-2020-9049: Johnsoncontrols C-Cure Web

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Johnsoncontrols C-Cure Web: up to and including 2.90
• Johnsoncontrols Victor Web: up to and including 5.6

Published 2020-11-19. Last modified 2026-06-17.