CVE-2021-1270: Cisco Data Center Network Manager Authorization Bypass Vulnerabilities

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-01-20 · updated 2026-06-17
Weakness: CWE-863

Description

Multiple vulnerabilities in the web-based management interface of Cisco Data Center Network Manager (DCNM) could allow an authenticated, remote attacker to view, modify, and delete data without proper authorization. For more information about these vulnerabilities, see the Details section of this advisory.

Affected products

Cisco Data Center Network Manager: before 11.5\(1\) — fixed in 11.5\(1\)

How to fix

Upgrade to a fixed version: Cisco Data Center Network Manager 11.5\(1\). Check the vendor advisory for mitigations.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-authbypass-OHBPbxu
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-authbypass-OHBPbxu

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