CVE-2026-79686 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 in the system's internal protection mechanisms, specifically relating to role-based access control enforcement. This flaw allows an attacker who has already obtained authenticated credentials with limited or standard user privileges to circumvent intended security boundaries. The core technical issue lies within the application logic that governs privilege escalation checks; rather than strictly validating whether a specific action is permitted for the current session's identity, the system fails to properly enforce these restrictions during certain operational sequences. This misconfiguration effectively creates an authorization bypass where the software trusts input or context from a lower-privileged entity as if it possessed higher-level administrative rights. Such failures are typically categorized under CWE-269 Improper Privilege Management and often align with MITRE ATT&CK techniques related to privilege escalation, such as T1078 Valid Accounts when combined with initial access via stolen credentials or T1548 Abuse Elevation Control Mechanism if the bypass exploits a specific control mechanism.
From an operational perspective, this vulnerability poses a severe risk to the integrity and confidentiality of data stored within the PowerStore array. An attacker leveraging this flaw could gain administrative privileges without needing to discover additional vulnerabilities or exploit complex logic errors in authentication protocols. Once elevated access is achieved, the adversary can perform unrestricted operations including modifying system configurations, accessing sensitive storage volumes, disabling security logging features, or deploying malicious software on the management interface. This level of control effectively compromises the entire infrastructure managed by the array, potentially leading to data exfiltration, ransomware deployment, or complete service disruption for connected clients relying on the storage resources. The impact is compounded by the fact that Dell PowerStore systems are often deployed in enterprise environments where they serve as critical backend components for mission-critical applications, making unauthorized administrative access a high-severity incident requiring immediate remediation.
Mitigation strategies must focus on both technical patching and operational hardening to address this class of vulnerability. The primary defense is the immediate application of vendor-provided firmware or software updates that correct the underlying authorization logic flaws within the PowerStore operating system. Organizations should verify their current version against Dell Security Advisories to ensure they are running a patched release where these protection mechanisms have been reinforced. In addition to patching, implementing strict network segmentation for management interfaces is crucial; administrative ports and services should be restricted to trusted IP ranges using firewalls or virtual LANs to limit the attack surface available to potential attackers. Furthermore, enforcing multi-factor authentication for all administrative accounts adds a significant layer of defense-in-depth, ensuring that even if credentials are compromised through phishing or other means, the attacker cannot easily achieve initial access without the second factor. Regular auditing of user roles and permissions should also be conducted to adhere to the principle of least privilege, ensuring that no account holds more authority than strictly necessary for its function, thereby reducing the potential impact if a bypass is attempted.