Vulnerability in Insyde Software Insydeh2o

CVE-2026-6485

UEFI BIOS embedded Shell could be used to bypass Secure Boot via shell commands or startup scripts.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (7.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-6485: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-6485?
CVE-2026-6485 is a high-severity vulnerability in Insyde Software Insydeh2o, classified under Active Debug Code. CVSS score: 8.2/10. Published 2026-09-09.
How severe is CVE-2026-6485?
High severity. CVSS v3 base score is 8.2 out of 10.