CVE-2025-4275

SecureFlashDxe: Incorrect UEFI variable attributes check allows usage of invalid certificate

Description

Running the provided utility changes the certificate on any Insyde BIOS and then the attached .efi file can be launched.

Remediation

Solution:

kernel 5.2, Version 05.2A.16 kernel 5.3, Version 05.39.16 kernel 5.4, Version 05.47.16 kernel 5.5, Version 05.55.16 kernel 5.6, Version 05.62.16 kernel 5.7, Version 05.71.16

7.8

CVSS

Severity: High

CVSS 3.1 •

EPSS 0.01%

Affected: Insyde Software InsydeH2O

References

Link	Tags
https://www.insyde.com/security-pledge/sa-2025002/
https://www.kb.cert.org/vuls/id/211341

Frequently Asked Questions

What is the severity of CVE-2025-4275?: CVE-2025-4275 has been scored as a high severity vulnerability.
How to fix CVE-2025-4275?: To fix CVE-2025-4275: kernel 5.2, Version 05.2A.16 kernel 5.3, Version 05.39.16 kernel 5.4, Version 05.47.16 kernel 5.5, Version 05.55.16 kernel 5.6, Version 05.62.16 kernel 5.7, Version 05.71.16
Is CVE-2025-4275 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-4275 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-4275?: CVE-2025-4275 affects Insyde Software InsydeH2O.

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