CVE-2025-4276 - Vulnerability Details - OpenCVE

UsbCoreDxe has a vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Insyde	Insydeh2o

No data.

No data.

References

Link	Providers
https://www.insyde.com/security-pledge/sa-2025005/

History

Thu, 14 Aug 2025 06:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Insyde Insyde insydeh2o
Vendors & Products		Insyde Insyde insydeh2o

Wed, 13 Aug 2025 14:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 13 Aug 2025 02:00:00 +0000

Type	Values Removed	Values Added
Description		UsbCoreDxe has a vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.
Title		UsbCoreDxe: improper input validation may lead to arbitrary code execution
Weaknesses		CWE-20
References		https://www.insyde.com/security-pledge/sa-2025005/
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H'}`

MITRE

Status: PUBLISHED

Assigner: Insyde

Published: 2025-08-13T01:41:56.834Z

Updated: 2025-08-14T05:54:07.744Z

Reserved: 2025-05-05T02:10:43.371Z

Link: CVE-2025-4276

Vulnrichment

Updated: 2025-08-13T13:22:23.276Z

NVD

Status : Awaiting Analysis

Published: 2025-08-13T02:15:25.723

Modified: 2025-08-13T17:33:46.673

Link: CVE-2025-4276

Redhat

No data.

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