Vulnerability in Insyde Software Insydeh2o

CVE-2021-38489

HDD password plaintext is stored in a UEFI variable.

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: 0.001 (1.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 1.8% 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-2021-38489: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-38489?
CVE-2021-38489 is a high-severity vulnerability in Insyde Software Insydeh2o, classified under Plaintext Storage of a Password. CVSS score: 8.2/10. Published 2026-09-03.
How severe is CVE-2021-38489?
High severity. CVSS v3 base score is 8.2 out of 10.