CVE-2026-10587 in Lenovo
Summary
by MITRE • 07/16/2026
A potential out-of-bounds write vulnerability could allow a local privileged attacker to modify power management settings in System Management Mode.
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Analysis
by VulDB Data Team • 07/16/2026
This vulnerability represents a critical security flaw that exists within the system management mode of computing platforms, where an attacker with local privileged access could potentially manipulate power management configurations through an out-of-bounds write operation. The technical nature of this issue stems from improper bounds checking during memory operations within the system management mode components responsible for handling power management settings. When a malicious actor with elevated privileges executes crafted code, they can trigger an out-of-bounds write that corrupts adjacent memory locations containing critical power management parameters. This flaw operates at the intersection of hardware and firmware security, specifically targeting the interface between the operating system's power management subsystem and the system management mode handlers that control low-level hardware behaviors.
The operational impact of this vulnerability extends beyond simple privilege escalation as it provides attackers with the ability to modify fundamental power management configurations that govern how systems handle sleep states, thermal throttling, and CPU frequency scaling. Such modifications could lead to persistent system instability, performance degradation, or even enable more sophisticated attacks by manipulating system behavior during critical security operations. The vulnerability's exploitation requires local privileged access, typically corresponding to kernel-level or administrative privileges, which aligns with attack patterns documented in the attack mitigation framework where attackers first establish a foothold before escalating privileges to achieve deeper system control. This characteristic places the vulnerability in the category of persistent threats that can maintain long-term influence over target systems.
From a compliance and security standards perspective, this vulnerability maps directly to CWE-787 Out-of-bounds Write within the Common Weakness Enumeration framework, which specifically addresses memory safety issues where applications write data beyond allocated buffer boundaries. The implications extend to enterprise security frameworks such as NIST SP 800-53 controls that govern system integrity and access control mechanisms. Organizations implementing security controls based on the MITRE ATT&CK framework would classify this vulnerability under the privilege escalation category, potentially enabling techniques like process injection or kernel exploitation for broader system compromise. The remediation approach typically involves implementing proper bounds checking, memory validation routines, and regular firmware updates to address the underlying buffer overflow conditions that permit unauthorized modification of critical system management parameters.
The risk assessment for this vulnerability indicates a high severity classification due to its potential to affect system stability and security posture through modification of power management configurations. Security teams should prioritize patch management for affected systems and implement monitoring controls to detect unauthorized changes to power management settings. Additionally, organizations should consider implementing runtime protection mechanisms that monitor for suspicious memory access patterns within system management mode components, as these protections align with defensive strategies outlined in various cybersecurity frameworks including ISO 27001 and the SANS Institute's critical security controls. The vulnerability demonstrates how low-level hardware interfaces can become attack vectors when proper memory safety practices are not implemented in firmware and kernel components.