CVE-2025-10238
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Potential Out-of-Bounds Write in ThinkPad BIOS

Publication date: 2026-06-10

Last updated on: 2026-06-10

Assigner: Lenovo Group Ltd.

Description
During an internal security assessment, a potential out-of-bounds write vulnerability was discovered in the BIOS of some ThinkPad products could allow a privileged local user to execute code in System Management Mode (SMM).

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Meta Information

Published
2026-06-10
Last Modified
2026-06-10
Generated
2026-06-30
AI Q&A
2026-06-10
EPSS Evaluated
2026-06-29
NVD
CVE-2025-10238
EUVD
EUVD-2025-210108

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
lenovo thinkpad_bios *

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This vulnerability is a potential out-of-bounds write issue found in the BIOS of some Lenovo ThinkPad products. It was discovered during an internal security assessment. The flaw could allow a privileged local user to execute code within the System Management Mode (SMM), which is a highly privileged execution mode in the system.

Impact Analysis

If exploited, this vulnerability could allow a privileged local user to execute arbitrary code in System Management Mode (SMM). Since SMM has higher privileges than the operating system, this could lead to serious security risks including bypassing security controls, compromising system integrity, and potentially gaining persistent control over the affected system.

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