CVE-2021-34700: Cisco Catalyst SD-WAN Manager

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability in the CLI interface of Cisco SD-WAN vManage Software could allow an authenticated, local attacker to read arbitrary files on the underlying file system of an affected system. This vulnerability exists because access to sensitive information on an affected system is not sufficiently controlled. An attacker could exploit this vulnerability by gaining unauthorized access to sensitive information on an affected system. A successful exploit could allow the attacker to create forged authentication requests and gain unauthorized access to the web UI of an affected system.

Affected products

• Cisco Catalyst SD-WAN Manager: from 20.5.0, before 20.5.1 (fixed in 20.5.1)
• Cisco SD-WAN Vmanage: before 20.4.2 (fixed in 20.4.2)

Published 2021-07-22. Last modified 2026-06-17.