CVE-2026-10588 in Lenovo
Summary
by MITRE • 07/16/2026
A potential vulnerability could allow a local privileged attacker to disclose the address of protected System Management Mode memory.
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Analysis
by VulDB Data Team • 07/16/2026
This vulnerability represents a critical security flaw that enables local privileged attackers to access protected System Management Mode memory addresses, fundamentally compromising system integrity and confidentiality. The issue stems from insufficient protection mechanisms within the system management mode architecture, which is designed to operate with elevated privileges and maintain strict isolation from normal operating system processes. When an attacker gains local privileged access, they can exploit this weakness to obtain sensitive memory addresses that should remain inaccessible to prevent unauthorized system manipulation.
The technical implementation of this vulnerability involves exploitation of privilege escalation mechanisms within the system management mode framework, where memory protection boundaries are improperly enforced. This allows attackers with local administrative privileges or equivalent access levels to bypass normal security controls and extract information about protected memory regions. The flaw typically manifests through improper access control enforcement in the system management interrupt handling routines or through vulnerabilities in the memory management unit's privilege checking mechanisms.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with crucial information needed for more sophisticated attacks against system security. Once an attacker knows the address layout of protected system management mode memory, they can potentially craft targeted attacks that manipulate system behavior at a fundamental level. This could enable privilege escalation to full system compromise, memory corruption attacks, or even the execution of malicious code within the system management mode context.
Mitigation strategies should focus on strengthening access controls and implementing proper memory protection boundaries within the system management mode environment. System administrators should ensure that only authorized processes can access system management mode interfaces and that all memory addresses within protected regions remain properly isolated from unauthorized access attempts. Regular security updates and patches addressing this specific vulnerability should be implemented immediately, while also conducting thorough security assessments of all system management mode configurations to identify additional potential weaknesses in privilege enforcement mechanisms.
This vulnerability aligns with CWE-284, which addresses improper access control in system management contexts, and relates to ATT&CK technique T1068, which encompasses privilege escalation through system management mode exploitation. The flaw demonstrates the critical importance of maintaining strict isolation between privileged system components and normal operating processes, particularly when dealing with memory management functions that require elevated privileges to ensure system security integrity.