CVE-2023-20254: Cisco SD-WAN Manager

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A vulnerability in the session management system of the Cisco Catalyst SD-WAN Manager multi-tenant feature could allow an authenticated, remote attacker to access another tenant that is being managed by the same Cisco Catalyst SD-WAN Manager instance. This vulnerability requires the multi-tenant feature to be enabled. This vulnerability is due to insufficient user session management within the Cisco Catalyst SD-WAN Manager system. An attacker could exploit this vulnerability by sending a crafted request to an affected system. A successful exploit could allow the attacker to gain unauthorized access to information about another tenant, make configuration changes, or possibly take a tenant offline causing a denial of service condition.

Affected products

• Cisco SD-WAN Manager: before 20.6.3.4 (fixed in 20.6.3.4); from 20.7, before 20.9.3.2 (fixed in 20.9.3.2); from 20.10, before 20.10.1.2 (fixed in 20.10.1.2); from 20.11, before 20.11.1.2 (fixed in 20.11.1.2)

Published 2023-09-27. Last modified 2026-06-17.