CVE-2026-6484
Lack of verified boot to certain FV may cause arbitrary code execution
CVSS Score
8.2
EPSS Score
0.0%
EPSS Percentile
0th
In an UEFI, Lack of verified boot to certain FV may cause arbitrary code execution.
| CWE | CWE-1277 |
| Vendor | insyde software |
| Product | insydeh2o |
| Published | Aug 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Insyde Software / InsydeH2O
All versions affected References
Credits
🔍 Thanks to Nikolaj Schlej, independent firmware security researcher, for reporting the vulnerability and engaging in this coordinated disclosure.