What’s Vulnerable › Vulnerabilities

CVE-2021-1264: Cisco DNA Center Command Runner Command Injection Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.9% 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-78

Description

A vulnerability in the Command Runner tool of Cisco DNA Center could allow an authenticated, remote attacker to perform a command injection attack. The vulnerability is due to insufficient input validation by the Command Runner tool. An attacker could exploit this vulnerability by providing crafted input during command execution or via a crafted command runner API call. A successful exploit could allow the attacker to execute arbitrary CLI commands on devices managed by Cisco DNA Center.

Affected products

• Cisco Digital Network Architecture Center (DNA Center): before 1.3.1.0 — fixed in 1.3.1.0

How to fix

Upgrade to a fixed version: Cisco Digital Network Architecture Center (DNA Center) 1.3.1.0. Check the vendor advisory for mitigations.

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnac-cmdinj-erumsWh9
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnac-cmdinj-erumsWh9

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