CVE-2025-11577

Clevo UEFI firmware exposed Boot Guard private keys, enabling potential abuse of the Boot Guard trust chain

HIGH
7.6
CVSS Score
Published: October 14, 2025 at 03:34 PM UTC
Updated: October 8, 2026 at 12:10 PM UTC
1 product affected across 1 vendorNotebook System Firmware

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Severity
HIGH7.6
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Clevo’s UEFI firmware update packages, including B10717.exe, inadvertently contained private signing keys used for Boot Guard and Boot Policy Manifest verification. The exposure of these keys could allow attackers to sign malicious firmware that appears trusted by affected systems, undermining the integrity of the early boot process.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.6HIGHCISA-ADP
Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED

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