CVE-2021-1508: Cisco Catalyst SD-WAN Manager

High severity, CVSS 8.8. EPSS: 1.6% chance of exploitation in the next 30 days.

Multiple vulnerabilities in Cisco SD-WAN vManage Software could allow an unauthenticated, remote attacker to execute arbitrary code or gain access to sensitive information, or allow an authenticated, local attacker to gain escalated privileges or gain unauthorized access to the application. For more information about these vulnerabilities, see the Details section of this advisory.

Affected products

• Cisco Catalyst SD-WAN Manager: 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 Vmanage: before 19.2.99 (fixed in 19.2.99); from 20.3, before 20.3.3 (fixed in 20.3.3)

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