CVE-2026-63426 in Dock Manager
Summary
by MITRE • 08/13/2026
During an internal security assessment, a potential vulnerability was discovered in Lenovo Dock Manager that could allow an authenticated local user to perform an arbitrary file deletion with elevated privileges.
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Analysis
by VulDB Data Team • 08/13/2026
This vulnerability in Lenovo Dock Manager represents a critical privilege escalation flaw that undermines the security posture of enterprise endpoints. The issue stems from insufficient access controls within the dock manager application, which fails to properly validate file operations performed by authenticated users. When a local user successfully authenticates to the system, they can leverage this weakness to execute arbitrary file deletion commands with elevated privileges typically reserved for system administrators or the operating system itself. This flaw directly violates the principle of least privilege and creates an attack surface that could be exploited by malicious insiders or compromised accounts.
The technical implementation of this vulnerability involves improper input validation and inadequate privilege separation within the dock manager component. The application appears to process user requests without sufficient authorization checks, allowing authenticated users to manipulate file system operations through crafted parameters or direct API calls. This type of flaw commonly maps to CWE-276, which addresses incorrect permissions for critical resources, and may also relate to CWE-732, which covers inadequate protection of resource permissions. The vulnerability exists at the application level within the dock manager service, suggesting a design flaw in how file operations are handled rather than a kernel-level issue.
From an operational impact perspective, this vulnerability poses significant risks to enterprise environments where Lenovo docking stations are widely deployed. An authenticated local user could delete critical system files, configuration data, or even maliciously target user documents, leading to system instability, data loss, and potential business disruption. The elevated privileges required for the attack mean that the compromise must occur through legitimate user authentication, making detection more challenging and potentially allowing attackers to remain undetected while performing destructive operations. This vulnerability also aligns with ATT&CK technique T1059, which covers command and scripting interpreter usage, and T1070, covering indicator removal on host, as the attacker could use this privilege escalation to remove evidence of their activities.
The mitigation approach should focus on immediate patching of the Lenovo Dock Manager application through official firmware updates provided by Lenovo. Organizations must also implement monitoring for unusual file deletion patterns on systems running dock manager services and establish strict access control policies limiting local user privileges where possible. Network segmentation and endpoint detection and response solutions should be deployed to identify potential exploitation attempts. Additionally, system administrators should conduct thorough audits of all dock manager configurations and disable unnecessary features that might contribute to the vulnerability. The remediation process should include comprehensive testing to ensure that patches do not disrupt legitimate docking station functionality while maintaining the security hardening measures necessary to prevent future privilege escalation attacks.