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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-11577
StatePUBLISHED
Assignercertcc
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-10-14 16:15:36 UTC
Updated2026-10-08 12:10:00 UTC
DescriptionClevo’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.

Risk And Classification

Primary CVSS: v3.1 7.6 HIGH from ADP

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS: 0.002610000 probability, percentile 0.169440000 (date 2026-10-22)

Problem Types: CWE-321 Use of Hard‑coded Cryptographic Key

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.6HIGHCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.6HIGHCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Clevo Notebook System Firmware affected 1.07.07TRO1 Not specified

References

ReferenceSourceLinkTags
www.binarly.io/advisories/brly-2025-002 [email protected] www.binarly.io
www.kb.cert.org/vuls/id/538470 [email protected] www.kb.cert.org
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