CVE-2026-23862 in ThinOS 10
Summary
by MITRE • 03/16/2026
Dell ThinOS 10 versions prior to ThinOS 2602_10.0573, contain an Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges.
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Analysis
by VulDB Data Team • 03/21/2026
This vulnerability exists in Dell ThinOS 10 versions prior to 2602_10.0573 and represents a critical command injection flaw that enables local attackers to escalate their privileges. The vulnerability stems from improper neutralization of special elements in command execution contexts, allowing malicious input to be interpreted as executable commands rather than data. This weakness falls under the CWE-77 category of Improper Neutralization of Special Elements used in a Command, which is a well-documented software security flaw that has been extensively analyzed in the cybersecurity community. The vulnerability specifically affects the command processing mechanisms within the ThinOS operating system, where user-supplied input is not properly sanitized before being passed to system commands.
The operational impact of this vulnerability is severe as it allows a low privileged local attacker to execute arbitrary commands with elevated privileges. This command injection occurs when the system fails to properly validate or escape special characters in input fields that are subsequently used in shell commands or system calls. Attackers can exploit this by crafting malicious input that includes shell metacharacters, semicolons, or other command separators that would normally be treated as data but are instead interpreted as command delimiters. The vulnerability's exploitation path typically involves local access to the system, which means an attacker would need to first establish a foothold through other means such as credential compromise or physical access before leveraging this specific privilege escalation vector.
From an attack perspective, this vulnerability aligns with several ATT&CK techniques including privilege escalation through command injection and local persistence mechanisms. The attack chain would typically involve an initial compromise that grants local access, followed by exploitation of this command injection vulnerability to execute elevated commands. The affected Dell ThinOS environment represents a specialized operating system designed for thin client computing, where the command injection vulnerability could potentially allow attackers to gain root-level access to the system. This poses significant risks in enterprise environments where thin clients are commonly deployed, as successful exploitation could provide attackers with complete control over the affected devices and potentially enable lateral movement within the network.
Organizations should prioritize immediate patching of affected Dell ThinOS installations to address this vulnerability. The recommended mitigation strategy involves upgrading to Dell ThinOS version 2602_10.0573 or later, which includes proper input validation and command sanitization mechanisms. System administrators should also implement additional security controls such as restricting local access to thin client devices, monitoring for suspicious command execution patterns, and conducting regular security assessments of thin client environments. Network segmentation and privilege separation practices should be reinforced to minimize the potential impact of successful exploitation. The vulnerability demonstrates the importance of proper input validation in all system components, particularly in operating systems designed for remote or thin client environments where the attack surface may be limited but the impact of successful exploitation can be significant.