What’s Vulnerable › Vulnerabilities

CVE-2020-3538: Cisco Data Center Network Manager Path Traversal Vulnerability

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-11-18 · updated 2026-06-17
• Weakness: CWE-20

Description

A vulnerability in a certain REST API endpoint of Cisco Data Center Network Manager (DCNM) Software could allow an authenticated, remote attacker to perform a path traversal attack on an affected device. The vulnerability is due to insufficient path restriction enforcement. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to overwrite or list arbitrary files on the affected device.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

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

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-authbypass-YVJzqgk2
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-pa-trav-bMdfSTTq
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-tls-dos-xW53TBhb

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