CVE-2026-24722 in File Station
Summary
by MITRE • 10/15/2026
A NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.
We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5243 and later
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Analysis
by VulDB Data Team • 10/15/2026
The reported issue represents a classic NULL pointer dereference flaw within the File Station 5 application, which is commonly deployed as part of network-attached storage management interfaces. This type of vulnerability arises when software attempts to access memory at an address that has not been allocated or has been explicitly set to null, typically due to improper error handling or missing validation checks before function execution. In this specific instance, the flaw allows a remote attacker who possesses valid user credentials to trigger a system crash by sending specially crafted requests that result in the application attempting to dereference a NULL pointer. The presence of an authentication requirement indicates that this is not a fully unauthenticated exploit but rather requires initial access privileges, which significantly narrows the attack vector compared to zero-day vulnerabilities accessible to anonymous users on the internet.
From a technical perspective, the operational impact of this vulnerability is primarily centered around availability rather than confidentiality or integrity. When the NULL pointer dereference occurs within the main application thread or critical service process handling file operations, it typically causes an immediate segmentation fault or exception that terminates the affected process. For network storage appliances running File Station 5, such a crash can lead to a denial-of-service condition where users are unable to access files, browse directories, or perform standard administrative tasks until the service is manually restarted by an administrator. While this does not directly allow for arbitrary code execution or privilege escalation in its current form, it serves as a potent tool for disrupting business operations and creating instability within the storage infrastructure.
In terms of industry classification standards, this vulnerability aligns with CWE-476, which defines NULL Pointer Dereference as an error where software dereferences a pointer that it expects to point to valid memory but does not. This flaw is often categorized under the broader umbrella of improper input validation or error handling failures. Furthermore, within the context of cyber attack frameworks such as MITRE ATT&CK, this exploitation technique falls under T1499 Endpoint Denial of Service, specifically involving resource exhaustion through application crashes. The requirement for a user account places it in scenarios where an insider threat or compromised legitimate credentials are leveraged to degrade system performance and availability.
To mitigate the risks associated with this vulnerability, organizations must ensure that their File Station 5 instances are updated to version 5.5.6.5243 or later, as indicated by the vendor's remediation guidance. This update likely includes code patches that validate pointer states before dereferencing them and implement robust exception handling mechanisms to prevent crashes from propagating through the application stack. Additionally, since exploitation requires valid user credentials, enforcing strict access control policies is essential. Administrators should review account permissions regularly, ensuring that only necessary personnel have access to File Station interfaces and that strong authentication methods are enforced to reduce the likelihood of credential compromise. Network segmentation can also be employed to limit exposure of management interfaces to trusted internal networks rather than exposing them directly to untrusted external zones.