CVE-2023-20020: Cisco Broadworks Application Delivery Platform Device Management

High severity, CVSS 8.6. EPSS: 0.9% chance of exploitation in the next 30 days.

A vulnerability in the Device Management Servlet application of Cisco BroadWorks Application Delivery Platform and Cisco BroadWorks Xtended Services Platform could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper input validation when parsing HTTP requests. An attacker could exploit this vulnerability by sending a sustained stream of crafted requests to an affected device. A successful exploit could allow the attacker to cause all subsequent requests to be dropped, resulting in a DoS condition.

Affected products

• Cisco Broadworks Application Delivery Platform Device Management: from 22.0, before 2022.11_1.273 (fixed in 2022.11_1.273)
• Cisco Broadworks Xtended Services Platform: from 22.0, before 23.0.1075.ap384245 (fixed in 23.0.1075.ap384245)

Published 2023-01-20. Last modified 2026-06-17.