CVE-2025-57705 in QTS
Summary
by MITRE • 01/02/2026
An allocation of resources without limits or throttling 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 prevent other systems, applications, or processes from accessing the same type of resource.
We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
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Analysis
by VulDB Data Team • 01/06/2026
This vulnerability represents a critical resource exhaustion issue affecting QNAP operating systems that falls under the CWE-400 category of unrestricted resource consumption. The flaw manifests as an insufficient allocation of resources with no proper limits or throttling mechanisms in place, allowing for potential denial of service conditions when exploited by malicious actors. The vulnerability specifically impacts QTS and QuTS hero operating systems, creating a scenario where unauthorized access can lead to system-wide resource starvation.
The technical implementation of this vulnerability stems from inadequate resource management controls within the affected QNAP operating system versions. When a remote attacker successfully compromises an administrator account, they can leverage this privilege to consume system resources without proper constraints. This allows the attacker to exhaust critical system resources such as memory, CPU cycles, or file descriptors, effectively preventing legitimate users or processes from accessing these same resources. The lack of resource throttling mechanisms creates an environment where malicious resource consumption can occur without detection or limitation.
The operational impact of this vulnerability extends beyond simple service disruption to potentially compromise the entire system stability and availability. Attackers can exploit this weakness to cause cascading failures throughout the network infrastructure, affecting not only the compromised QNAP device but potentially other connected systems that depend on its services. The vulnerability's severity is amplified by the requirement for administrative access, which provides attackers with elevated privileges to execute resource-intensive operations that would otherwise be restricted. This creates a scenario where a single compromised administrative account can lead to widespread service degradation across multiple network segments.
The remediation strategy involves updating to the specified versions where the resource management controls have been properly implemented. QTS version 5.2.7.3256 build 20250913 and later, along with QuTS hero versions h5.2.7.3256 build 20250913 and later, and h5.3.1.3250 build 20250912 and later, include proper resource allocation limits and throttling mechanisms. Organizations should prioritize immediate deployment of these patches to mitigate the risk of exploitation and ensure system resilience against resource exhaustion attacks. The fix addresses the underlying CWE-400 vulnerability by implementing proper resource management controls that prevent unlimited consumption of system resources.