CVE-2023-20254

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-09-27 · updated 2026-06-17
Weakness: CWE-732

Description

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; from 20.7 before 20.9.3.2; from 20.10 before 20.10.1.2; from 20.11 before 20.11.1.2 — fixed in 20.10.1.2, 20.11.1.2, 20.6.3.4, 20.9.3.2

How to fix

Upgrade to a fixed version: Cisco Sd-Wan Manager 20.10.1.2, 20.11.1.2, 20.6.3.4, 20.9.3.2. Check the vendor advisory for mitigations.

References

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