CVE-2021-1512: Cisco Catalyst SD-WAN Manager

Medium severity, CVSS 6.0. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying file system of an affected system. This vulnerability is due to insufficient validation of the user-supplied input parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content in any arbitrary files that reside on the underlying host file system.

Affected products

• Cisco Catalyst SD-WAN Manager: from 19.2, before 19.2.3 (fixed in 19.2.3); from 20.3, before 20.3.1 (fixed in 20.3.1); from 20.4, before 20.4.1 (fixed in 20.4.1); from 20.5, before 20.5.1 (fixed in 20.5.1)
• Cisco SD-WAN Vbond Orchestrator: affected versions not specified
• Cisco SD-WAN Vmanage: before 18.4.6 (fixed in 18.4.6); from 20.1, before 20.1.2 (fixed in 20.1.2)
• Cisco Vedge-100b Firmware: affected versions not specified
• Cisco Vedge 1000 Firmware: affected versions not specified
• Cisco Vedge 100 Firmware: affected versions not specified
• Cisco Vedge 100b Firmware: affected versions not specified
• Cisco Vedge 100m Firmware: affected versions not specified
• Cisco Vedge 100wm Firmware: affected versions not specified
• Cisco Vedge 2000 Firmware: affected versions not specified
• Cisco Vedge 5000 Firmware: affected versions not specified
• Cisco Vedge Cloud Firmware: affected versions not specified
• Cisco Vsmart Controller Firmware: affected versions not specified

Published 2021-05-06. Last modified 2026-06-17.