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Vulnerability record · CVE-2020-3478 · published 4 September 2020

CVE-2020-3478: Cisco enterprise nfv infrastructure software improper input validation vulnerability

Cisco · Enterprise Nfv Infrastructure Software

A vulnerability in the REST API of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, remote attacker to overwrite certain files that should be restricted on an affected device. The vulnerability is due to insufficient authorization enforcement on an affected system. An attacker could exploit this vulnerability by uploading a file using the REST API. A successful exploit could allow an attacker to overwrite and upload files, which could degrade the functionality of the affected system.

8.1 CVSS 3.1 High EPSS 1.2% · top 32.7% CWE-20 · Improper input validation
8.1CVSS 3.1 base score, v2 5.5
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
24 Aug 2026Last modified by NVD

Description

A vulnerability in the REST API of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, remote attacker to overwrite certain files that should be restricted on an affected device. The vulnerability is due to insufficient authorization enforcement on an affected system. An attacker could exploit this vulnerability by uploading a file using the REST API. A successful exploit could allow an attacker to overwrite and upload files, which could degrade the functionality of the affected system.

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

Affected products

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

References

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2020-3478), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.