CVE-2025-4423
Description
The vulnerability was identified in the code developed specifically for Lenovo. Please visit "Lenovo Product Security Advisories and Announcements" webpage for more information about the vulnerability. https://support.lenovo.com/us/en/product_security/home
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
A vulnerability in Lenovo's SetupAutomationSmm SMM module allows an attacker with local high privileges to write arbitrary code, causing memory corruption.
The vulnerability exists in the SetupAutomationSmm component, a System Management Mode (SMM) module developed for Lenovo. It stems from improper restriction of operations within the bounds of a memory buffer (CWE-119), leading to memory corruption [1].
Exploitation requires local access with high privileges (PR:H) and no user interaction (UI:N). The attack surface is limited to attackers who have already gained elevated privileges on the system, as the vulnerability is triggered from within SMM context [1].
Successful exploitation can result in arbitrary code execution in SMM, allowing the attacker to compromise the entire system with high impact on confidentiality, integrity, and availability [1]. The CVSS v3.1 score is 8.2.
Lenovo has released a security advisory (SA-2025007) detailing the vulnerability, and users are advised to apply firmware updates from Lenovo's product security page [1].
AI Insight generated on May 19, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Patches
0No patches discovered yet.
Vulnerability mechanics
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References
2News mentions
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