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CVE-2017-3197

28
FAUCET Score

CVE-2017-3197 is a critical vulnerability affecting specific GIGABYTE BRIX UEFI firmware versions (F6 for GB-BSi7H-6500 and F2 for GB-BXi7-5775). The flaw stems from insecure implementation of BIOS protection features, allowing arbitrary write access to the SPI flash and potential modification of the BIOS. With a CVSS score of 9.8 (CRITICAL), this network-exploitable vulnerability requires no user interaction and could lead to complete compromise of confidentiality, integrity, and availability. While no public exploit code is available and it's not listed on CISA's KEV, the vulnerability has garnered significant community discussion and media coverage, indicating awareness of its severe potential impact, including the possibility of UEFI ransomware.

Impacted Technologies

VendorProductVersion(s)CPE
f6CPE matchmatch criteria
cpe:2.3:o:gigabyte:gb-bsi7h-6500_firmware:f6:*:*:*:*:*:*:*
f2CPE matchmatch criteria
cpe:2.3:o:gigabyte:gb-bxi7-5775_firmware:f2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.64%
Probability of exploitation in next 30 days
EPSS Percentile
92.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0564 is in the 86th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / CylanceVulnResearch/disclosures/blob/master/CLVA-2017-01-001.md
ExploitThird Party Advisory
github.com / CylanceVulnResearch/disclosures/blob/master/CLVA-2017-01-002.md
ExploitThird Party Advisory
cylance.com / en_us/blog/gigabyte-brix-systems-vulnerabilities.html
ExploitThird Party Advisory
kb.cert.org / vuls/id/507496
Third Party AdvisoryUS Government Resource
securityfocus.com / bid/97294
Third Party AdvisoryVDB Entry