CVE-2025-4275: SecureFlashDxe: Incorrect UEFI variable attributes check allows usage of invalid certificate
Insyde Software · InsydeH2O
Vendor fix available · Affected: Insyde Software InsydeH2O · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 42% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Insyde Software · InsydeH2Ofrom Kernel 5.2 before 05.2A.16; from Kernel 5.3 before 05.39.16; from Kernel 5.4 before 05.47.16; from Kernel 5.5 before 05.55.16; from Kernel 5.6 before 05.62.16; from Kernel 5.7 before 05.71.16
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Insyde Software
- Published
- June 2025
CoverageNo articles yet
No CyberSIXT article names CVE-2025-4275 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.