CVE-2021-38489
HighCVSS 8.2Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
The hard disk password is stored in plaintext in a UEFI variable.
Risk Assessment
An attacker with access to UEFI variables could read the hard disk password, potentially leading to unauthorized data access.
Recommendation
It is recommended to store the password securely, e.g., encrypted, and restrict access to UEFI variables.
Other vulnerabilities in UEFI
See all- CVE-2026-6484High
In UEFI firmware, lack of verified boot for certain firmware volumes (FV) may allow arbitrary code execution.
- CVE-2024-8105Medium
A vulnerability exists in UEFI implementations that use a hard-coded software-based Platform Key (PK). An attacker in possession of the corresponding PK private key can sign arbitrary UEFI executables or firmware components, causing them to be trusted by affected systems and potentially bypassing UEFI Secure Boot trust validation.
Original NVD description (English source)
HDD password plaintext is stored in a UEFI variable.