{"cve":"CVE-2019-1880","nvd":{"published":"2019-06-05T17:29:00.647","modified":"2026-06-17T02:29:31.150","status":"Modified","description":"A vulnerability in the BIOS upgrade utility of Cisco Unified Computing System (UCS) C-Series Rack Servers could allow an authenticated, local attacker to install compromised BIOS firmware on an affected device. The vulnerability is due to insufficient validation of the firmware image file. An attacker could exploit this vulnerability by executing the BIOS upgrade utility with a specific set of options. A successful exploit could allow the attacker to bypass the firmware signature-verification process and install compromised BIOS firmware on an affected device.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N","score":4.4},"cwes":["CWE-345"],"references":["http://www.securityfocus.com/bid/108680","https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-ucs-biossig-bypass","http://www.securityfocus.com/bid/108680","https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-ucs-biossig-bypass"],"products":["cisco:unified_computing_system_server_firmware"],"source":"nvd","synced_at":"2026-10-19T20:57:00.690689396+00:00"},"epss":{"cve":"CVE-2019-1880","score":0.00208,"percentile":0.10967,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}