CVE-2026-79684 in PowerStore
Summary
by MITRE • 09/01/2026
Dell PowerStore contains a Protection Mechanism Failure vulnerability. An authenticated user with limited privileges could potentially exploit this vulnerability to bypass access restrictions and gain escalated privileges.
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Analysis
by VulDB Data Team • 09/01/2026
The identified vulnerability in Dell PowerStore represents a critical failure within the system's internal protection mechanisms, specifically relating to role-based access control and privilege escalation prevention logic. This flaw allows an attacker who has already obtained authenticated access with limited or low-level privileges to circumvent intended security boundaries. The core technical issue lies in the improper validation of user permissions during specific administrative operations or API calls. When a request is processed by the PowerStore management interface, the system fails to adequately verify whether the requesting entity possesses the necessary elevated rights for the action being performed. This oversight creates a path where standard users can invoke functions reserved exclusively for administrators, effectively bypassing the segregation of duties that is fundamental to secure enterprise storage architectures.
From an operational perspective, this vulnerability poses a severe risk to data integrity and system availability. An attacker leveraging this flaw could modify critical configuration settings, alter access control lists, or potentially disrupt services by changing resource allocations. In a production environment, such unauthorized changes can lead to service outages, data exposure, or the complete compromise of the storage array's security posture. The ability to escalate privileges transforms a minor breach into a major incident, as the attacker gains near-total control over the system without needing to exploit additional vulnerabilities for further lateral movement or deeper access.
This type of flaw is commonly categorized under CWE-269, which addresses Improper Privilege Management, and often aligns with ATT&CK techniques related to privilege escalation such as T1078 Valid Accounts when combined with initial authentication bypasses. The failure stems from a lack of robust server-side authorization checks that should enforce strict adherence to defined user roles regardless of the input provided by the client application. Developers must ensure that every privileged action is validated against the current session's permission set before execution, rather than relying solely on frontend restrictions or token validity without secondary verification at the business logic layer.
To mitigate this vulnerability, immediate patching through Dell’s official security update channels is required to apply the vendor-provided fix that corrects the authorization logic. In addition to applying patches, organizations should enforce strict network segmentation for management interfaces and implement multi-factor authentication to reduce the risk of initial credential compromise. Regular auditing of user privileges and adherence to the principle of least privilege are essential practices to limit the blast radius if such a vulnerability is exploited in the future. Continuous monitoring of administrative actions via logging mechanisms can also aid in detecting anomalous behavior indicative of privilege escalation attempts, allowing for rapid incident response before significant damage occurs.