A potential out of bounds write vulnerability could allow a local privileged attacker to execute code in System Management Mode.

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00109.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

No data.

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No data.

Advisories

No advisories yet.

Fixes

Solution

Update to the version (or newer) indicated for your model in the Product Impact section of the advisory - https://support.lenovo.com/us/en/product_security/LEN-220440

Workaround

No workaround given by the vendor.

References
Link Providers
https://support.lenovo.com/us/en/product_security/LEN-220440 cve-icon cve-icon
History

Fri, 31 Jul 2026 02:00:00 +0000

Type Values Removed Values Added
Title Lenovo BIOS Out-of-Bounds Write Leading to Local Privilege Escalation

Tue, 28 Jul 2026 01:00:00 +0000

Type Values Removed Values Added
Title Out-of-Bounds Write in Lenovo BIOS Enables Local Privilege Escalation

Sun, 26 Jul 2026 10:15:00 +0000

Type Values Removed Values Added
Title Out-of-Bounds Write in Lenovo BIOS Enables Local Privilege Escalation

Wed, 22 Jul 2026 21:00:00 +0000

Type Values Removed Values Added
Title Potential Out of Bounds Write in BIOS Enabling Privileged Code Execution in System Management Mode

Fri, 17 Jul 2026 04:00:00 +0000

Type Values Removed Values Added
Title Potential Out of Bounds Write in BIOS Enabling Privileged Code Execution in System Management Mode

Thu, 16 Jul 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-787
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 16 Jul 2026 17:00:00 +0000

Type Values Removed Values Added
Description A potential out of bounds write vulnerability could allow a local privileged attacker to execute code in System Management Mode.
References
Metrics cvssV3_1

{'score': 6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: lenovo

Published:

Updated: 2026-07-16T17:31:54.634Z

Reserved: 2026-06-01T19:55:19.225Z

Link: CVE-2026-10589

cve-icon Vulnrichment

Updated: 2026-07-16T17:22:10.139Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-07-16T17:16:54.090

Modified: 2026-07-16T18:16:41.043

Link: CVE-2026-10589

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-31T01:45:06Z

Weaknesses