CVE-2025-4275
SecureFlashDxe: Incorrect UEFI variable attributes check allows usage of invalid certificate
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 7.8EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
11 Jun 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A vulnerability in the digital signature verification process does not properly validate variable attributes which allows an attacker to bypass signature verification by creating a non-authenticated NVRAM variable. An attacker may to execute arbitrary signed UEFI code and bypass Secure Boot.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products
Insyde Software · InsydeH2OWant to know if your infrastructure is exposed to this?
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