CVE-2026-6484
HighCVSS 8.2Exploitation Probability (EPSS)
Low risk4th percentile - higher than 4% of all known CVEs
Summary
In UEFI firmware, lack of verified boot for certain firmware volumes (FV) may allow arbitrary code execution.
Risk Assessment
An attacker could gain control over the boot process, leading to full device compromise.
Recommendation
Install available UEFI firmware updates from the vendor that enforce verified boot for all volumes.
Other vulnerabilities in UEFI
See all- CVE-2021-38489High
The hard disk password is stored in plaintext in a UEFI variable.
- 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)
In an UEFI, Lack of verified boot to certain FV may cause arbitrary code execution.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS