CVE-2025-47212 in QTS
Summary
by MITRE • 10/03/2025
A command injection vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to execute arbitrary commands.
We have already fixed the vulnerability in the following versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later
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Analysis
by VulDB Data Team • 10/09/2025
This command injection vulnerability in QNAP operating systems represents a critical security flaw that allows remote attackers with administrative privileges to execute arbitrary commands on affected systems. The vulnerability stems from insufficient input validation and sanitization within the operating system's command processing mechanisms, creating an environment where maliciously crafted inputs can be interpreted and executed as system commands. This type of vulnerability falls under the CWE-77 category, which specifically addresses command injection flaws that occur when system commands are constructed using untrusted input without proper sanitization or escaping mechanisms.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it provides attackers with complete control over the affected QNAP devices. Once an attacker has obtained administrative credentials, they can leverage this command injection flaw to execute arbitrary code with the highest system privileges, potentially leading to data exfiltration, system compromise, network infiltration, or deployment of additional malicious payloads. The vulnerability affects multiple QNAP operating system variants including QTS and QuTS hero platforms, indicating a widespread issue across the vendor's product line. This presents significant risk to organizations relying on QNAP storage solutions for critical data infrastructure, as these devices often serve as central points for network storage and backup operations.
From an attack perspective, this vulnerability aligns with ATT&CK technique T1059.001 for command and scripting interpreter, specifically targeting legitimate system utilities and command-line interfaces to execute malicious code. The flaw essentially allows attackers to bypass normal access controls and execute commands directly on the target system, potentially enabling lateral movement within networks where QNAP devices are deployed. Organizations should note that the vulnerability is patched in QTS 5.2.6.3195 build 20250715 and later versions, as well as the corresponding QuTS hero versions, making timely patching essential for mitigating this risk. The vulnerability's severity is compounded by the fact that it requires only administrative access to exploit, suggesting that credential theft or other initial compromise methods could lead to full system takeover.
The remediation approach for this vulnerability involves immediate deployment of the patched versions mentioned in the advisory, with particular attention to the specific build numbers and version combinations. System administrators should conduct thorough inventory checks to identify all affected QNAP devices and ensure complete patch coverage across their network infrastructure. Additionally, organizations should implement enhanced monitoring for suspicious command execution patterns and review access controls to minimize the attack surface. The vulnerability demonstrates the critical importance of input validation and the principle of least privilege in system design, as proper sanitization of user inputs and restriction of administrative access would significantly reduce the impact of such flaws. Organizations should also consider implementing network segmentation and access controls to limit the potential damage from successful exploitation attempts.