CVE-2026-79682: Dell PowerStore RCE Vulnerability

CVE-2026-79682 Overview

Dell PowerStore contains a command injection vulnerability that allows an authenticated user with limited privileges to execute arbitrary commands with root privileges. The flaw is categorized under [CWE-77] (Improper Neutralization of Special Elements used in a Command) and requires local access to the affected system. Successful exploitation results in full compromise of confidentiality, integrity, and availability on the storage appliance, with impact extending beyond the vulnerable component due to a scope change.

Critical Impact
An authenticated low-privileged user can escalate to root and execute arbitrary commands on the PowerStore appliance, potentially compromising stored data and adjacent systems.

Affected Products

Dell PowerStore T
Refer to the Dell Security Update Advisory DSA-2026-330 for the complete list of affected versions

Discovery Timeline

2026-09-01 - CVE-2026-79682 published to NVD
2026-09-02 - Last updated in NVD database

Technical Details for CVE-2026-79682

Vulnerability Analysis

The vulnerability resides in Dell PowerStore, an enterprise storage platform. An authenticated user with limited privileges can inject operating system commands into a component that fails to properly neutralize special elements before passing input to a system shell or command interpreter. Because the vulnerable component executes with elevated privileges, injected commands run as root.

The scope change reflected in the CVSS vector indicates that exploitation impacts resources beyond the initially vulnerable component. In practice, this means an attacker who compromises the management plane can affect underlying storage services, hosted volumes, and administrative functions.

Root Cause

The root cause is improper neutralization of special elements used in a command [CWE-77]. User-controlled input reaches a command construction routine without adequate sanitization or safe API usage, allowing shell metacharacters or command separators to alter the intended command.

Attack Vector

Exploitation requires local access to the PowerStore management interface and valid credentials for a low-privileged account. The attacker submits crafted input to a vulnerable function that concatenates the input into a command executed by a privileged process. No user interaction is required. Dell has not published exploitation details, and no public proof-of-concept is available at this time.

Refer to the Dell Security Update Advisory for vendor-supplied technical details.

Detection Methods for CVE-2026-79682

Indicators of Compromise

Unexpected root-owned processes spawned by the PowerStore management service or its child processes.
Shell command execution originating from web or API worker processes on the appliance.
Audit log entries showing low-privileged user sessions immediately preceding privileged command execution.
Creation or modification of files in system directories following authenticated sessions from non-administrator accounts.

Detection Strategies

Correlate authentication events for low-privileged PowerStore accounts with privileged process activity on the same appliance.
Alert on shell metacharacters (;, |, `, $(), &&) submitted through PowerStore management APIs or CLI endpoints.
Monitor for unusual outbound connections from PowerStore management interfaces, which may indicate post-exploitation command-and-control.

Monitoring Recommendations

Forward PowerStore audit and syslog data to a centralized SIEM for long-term retention and correlation.
Baseline normal administrative activity for each service account and flag deviations such as new command patterns or off-hours activity.
Restrict and log all local and management network access to PowerStore appliances.

How to Mitigate CVE-2026-79682

Immediate Actions Required

Apply the security update referenced in Dell DSA-2026-330 as soon as maintenance windows permit.
Inventory all PowerStore T appliances and confirm firmware versions against the vendor advisory.
Audit local PowerStore accounts and remove or disable any unused low-privileged accounts.
Rotate credentials for accounts that may have been exposed prior to patching.

Patch Information

Dell has published fixed versions in the DSA-2026-330 advisory. Administrators should apply the vendor-recommended firmware or software update for their PowerStore T model. Consult Dell support for guidance on non-disruptive upgrade paths in production storage environments.

Workarounds

Restrict management-plane network access to PowerStore appliances using firewall rules and dedicated management VLANs.
Enforce strict role-based access control and limit the number of accounts with any level of access to the appliance.
Enable multi-factor authentication on identity providers that federate to PowerStore management interfaces where supported.
Monitor administrative activity closely until the patch is applied.

bash

# Configuration example - restrict management network access
# Replace interface and subnet values with those appropriate for your environment
iptables -A INPUT -p tcp --dport 443 -s 10.0.10.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP