CVE-2017-3198
An attacker can make arbitrary modifications to firmware images without being detected.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.58% probability · 75th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-345, CWE-311, CWE-347
- Affected
- gigabyte/gb-bsi7h-6500 firmware · gigabyte/gb-bxi7-5775 firmware
- Source
- cret@cert.org
EPSS 1.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/97294Third Party Advisory, VDB Entry
- https://www.cylance.com/en_us/blog/gigabyte-brix-systems-vulnerabilities.htmlExploit, Third Party Advisory
- https://www.kb.cert.org/vuls/id/507496Third Party Advisory, US Government Resource
- http://www.securityfocus.com/bid/97294Third Party Advisory, VDB Entry
- https://www.cylance.com/en_us/blog/gigabyte-brix-systems-vulnerabilities.htmlExploit, Third Party Advisory
- https://www.kb.cert.org/vuls/id/507496Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.