What’s Vulnerable › Vulnerabilities

CVE-2020-3236: Cisco Enterprise NFV Infrastructure Software Path Traversal Vulnerability

• Severity: medium (CVSS 6.7 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: 2020-06-18 · updated 2026-08-24
• Weakness: CWE-22

Description

A vulnerability in the CLI of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, local attacker to gain root shell access to the underlying operating system and overwrite or read arbitrary files. The attacker would need valid administrative credentials. This vulnerability is due to improper input validation of CLI command arguments. An attacker could exploit this vulnerability by using path traversal techniques when executing a vulnerable command. A successful exploit could allow the attacker to gain root shell access to the underlying operating system and overwrite or read arbitrary files on an affected device.

Affected products

• Cisco Enterprise NFV Infrastructure Software: before 4.1.1 — fixed in 4.1.1

How to fix

Upgrade to a fixed version: Cisco Enterprise NFV Infrastructure Software 4.1.1. Check the vendor advisory for mitigations.

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-ptrav-SHMzzwVR
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-ptrav-SHMzzwVR

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