HDD Password Stored In Plaintext
Summary
| CVE | CVE-2021-38489 |
|---|---|
| State | PUBLISHED |
| Assigner | Insyde |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-03 13:04:10 UTC |
| Updated | 2026-09-03 18:09:03 UTC |
| Description | HDD password plaintext is stored in a UEFI variable. |
Risk And Classification
Primary CVSS: v3.1 8.2 HIGH from 8338d8cb-57f7-4252-abc0-96fd13e98d21
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS: 0.001210000 probability, percentile 0.021770000 (date 2026-09-07)
Problem Types: CWE-256 | CWE-256 CWE-256: Unprotected Storage of Credentials
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | 8338d8cb-57f7-4252-abc0-96fd13e98d21 | Secondary | 8.2 | HIGH | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 8.2 | HIGH | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
HighUser Interaction
NoneScope
ChangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Insyde Software | InsydeH2O | affected See in the Solution | x86 |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.insyde.com/security-pledge/sa-2022025 | 8338d8cb-57f7-4252-abc0-96fd13e98d21 | www.insyde.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Insyde Software would like to thank Binarly for reporting this issue. (en)
Additional Advisory Data
Solutions
CNA: Kernel 5.1: Version 05.17.12 Kernel 5.2: Version 05.27.12 Kernel 5.3: Version 05.36.12 Kernel 5.4: Version 05.43.51 Kernel 5.5: Version 05.51.51
Legacy QID Mappings
- 590981 Siemens Industrial Products Insyde BIOS Multiple Vulnerabilities (SSA-306654)