UEFI BIOS Vulnerability in Insyde's Firmware Products
CVE-2026-6485

8.2HIGH

Key Information:

Vendor

Insyde Software

Status
Insydeh2o
Vendor
CVE Published:
9 September 2026

What is CVE-2026-6485?

A vulnerability in Insyde's UEFI BIOS firmware allows an attacker to bypass Secure Boot protections. This flaw enables unauthorized shell commands or startup scripts to be executed, potentially compromising system integrity by allowing the execution of malicious code. Users must ensure their firmware is updated to the latest version to mitigate the risk posed by this vulnerability.

Affected Version(s)

InsydeH2O x86 See in the Solution

References

https://www.insyde.com/security-pledge/sa-2026004/

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.