{"id":"CVE-2020-3138","title":"A vulnerability in the upgrade component of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, local attacker to install a malicious file when upgrading","summary":"A vulnerability in the upgrade component of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, local attacker to install a malicious file when upgrading. The vulnerability is due to insufficient signature …","severity":"medium","cvss":6.7,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-347","CWE-347"],"vendor":"cisco","product":"enterprise_nfv_infrastructure_software","affected":["enterprise_nfv_infrastructure_software <= 3.11.1"],"published":"2020-02-19","updated":"2026-08-24","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2020-3138","references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-codex-shs4NhvS","label":"psirt@cisco.com"},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-codex-shs4NhvS","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00207,"epssPercentile":0.11169,"ingestedAt":"2026-08-24T19:09:59.517Z","slug":"CVE-2020-3138","body":"## Overview\n\nA vulnerability in the upgrade component of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, local attacker to install a malicious file when upgrading. The vulnerability is due to insufficient signature validation. An attacker could exploit this vulnerability by providing a crafted upgrade file. A successful exploit could allow the attacker to upload crafted code to the affected device.\n\n## Affected\n\n- `enterprise_nfv_infrastructure_software <= 3.11.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":36.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}