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Vulnerability record · CVE-2020-3522 · published 26 August 2020

CVE-2020-3522: Cisco data center network manager improper access control vulnerability

Cisco · Data Center Network Manager

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.

6.3 CVSS 3.1 Medium EPSS 0.80% · top 44.8% CWE-284 · Improper access controlCWE-863 · Incorrect authorization
6.3CVSS 3.1 base score, v2 6.5
0.80%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-auth-bypass-MYeFpFcF Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-auth-bypass-MYeFpFcF Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-3522), CISA KEV, FIRST EPSS (scores of 2026-10-01). This page is refreshed as NVD updates the record.