CVE-2020-3522: Cisco Data Center Network Manager Authorization Bypass Vulnerability

Severity: medium (CVSS 6.3 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: 2020-08-26 · updated 2026-06-17
Weakness: CWE-284

Description

A vulnerability in the web-based management interface of Cisco Data Center Network Manager (DCNM) Software could allow an authenticated, remote attacker to bypass authorization on an affected device and access sensitive information that is related to the device. The vulnerability exists because the affected software allows users to access resources that are intended for administrators only. An attacker could exploit this vulnerability by submitting a crafted URL to an affected device. A successful exploit could allow the attacker to add, delete, and edit certain network configurations in the same manner as a user with administrative privileges.

Affected products

Cisco Data Center Network Manager: before 11.4\(1\) — fixed in 11.4\(1\)

How to fix

Upgrade to a fixed version: Cisco Data Center Network Manager 11.4\(1\). Check the vendor advisory for mitigations.

References

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