CVE-2020-3520: Cisco Data Center Network Manager Information Disclosure Vulnerability

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% 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-200

Description

A vulnerability in Cisco Data Center Network Manager (DCNM) Software could allow an authenticated, local attacker to obtain confidential information from an affected device. The vulnerability is due to insufficient protection of confidential information on an affected device. An attacker at any privilege level could exploit this vulnerability by accessing local filesystems and extracting sensitive information from them. A successful exploit could allow the attacker to view sensitive data, which they could use to elevate their privilege.

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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