{"id":"CVE-2017-3198","aliases":["EUVD-2017-12324","GHSA-8mv4-x3gg-mm93"],"status":"published","title":"GIGABYTE BRIX UEFI firmware is not cryptographically signed","description":"GIGABYTE BRIX UEFI firmware does not cryptographically validate images prior to updating the system firmware. Additionally, the firmware updates are served over HTTP. An attacker can make arbitrary modifications to firmware images without being detected.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01576,"percentile":0.75633,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-311","CWE-345","CWE-347"],"published":"2018-07-09T19:00:00Z","modified":"2026-06-17T01:17:43Z","products":[{"vendor":"gigabyte","product":"gb-bsi7h-6500"},{"vendor":"gigabyte","product":"gb-bsi7h-6500_firmware"},{"vendor":"gigabyte","product":"gb-bxi7-5775"},{"vendor":"gigabyte","product":"gb-bxi7-5775_firmware"}],"references":[{"url":"https://www.kb.cert.org/vuls/id/507496","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"http://www.securityfocus.com/bid/97294","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://www.cylance.com/en_us/blog/gigabyte-brix-systems-vulnerabilities.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-3198"},{"url":"https://github.com/advisories/GHSA-8mv4-x3gg-mm93"}],"sources":{"cve":[{"id":"CVE-2017-3198","title":"GIGABYTE BRIX UEFI firmware is not cryptographically signed","description":"GIGABYTE BRIX UEFI firmware does not cryptographically validate images prior to updating the system firmware. Additionally, the firmware updates are served over HTTP. An attacker can make arbitrary modifications to firmware images without being detected.","status":"published","published":"2018-07-09T19:00:00Z","modified":"2024-08-05T14:16:28.25Z","cwes":["CWE-345"],"updated_at":"2026-11-02T14:33:15.887816Z"}],"euvd":[{"id":"EUVD-2017-12324","description":"GIGABYTE BRIX UEFI firmware does not cryptographically validate images prior to updating the system firmware. Additionally, the firmware updates are served over HTTP. An attacker can make arbitrary modifications to firmware images without being detected.","status":"published","published":"2018-07-09T19:00:00Z","modified":"2024-08-05T14:16:28Z","updated_at":"2026-11-03T02:39:18.505086Z"}],"ghsa":[{"id":"GHSA-8mv4-x3gg-mm93","title":"GIGABYTE BRIX UEFI firmware does not cryptographically validate images prior to updating the...","description":"GIGABYTE BRIX UEFI firmware does not cryptographically validate images prior to updating the system firmware. Additionally, the firmware updates are served over HTTP. An attacker can make arbitrary modifications to firmware images without being detected.","status":"published","published":"2022-05-13T01:36:43Z","modified":"2023-02-01T05:09:02Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:50:54.417127Z"}],"nvd":[{"id":"CVE-2017-3198","description":"GIGABYTE BRIX UEFI firmware does not cryptographically validate images prior to updating the system firmware. Additionally, the firmware updates are served over HTTP. An attacker can make arbitrary modifications to firmware images without being detected.","status":"published","published":"2018-07-09T19:29:00.343Z","modified":"2026-06-17T01:17:43.05Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-345","CWE-311","CWE-347"],"updated_at":"2026-11-02T14:04:18.679411Z"}]}}