External risk intelligence

Dell PowerStore OS Command Injection Leading to Privilege Escalation

CVE advisorySeverity: CRITICAL (CVSS 9.1)

CVE-2026-103813

Dell PowerStore is an enterprise storage appliance designed to be managed and accessed within protected internal networks or private management segments. While it may have network connectivity, it is not intended to be exposed directly to the public internet, and access typically requires authenticated administrative privileges within an established internal environment.

OS Command Injection

Halo Surface Signal: 2 out of 5 — less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

Dell PowerStore storage systems have a vulnerability that could allow an authenticated user with limited access to gain full administrative control. While this issue requires existing access to an affected system, it could escalate privileges to the highest level on the appliance. The main concern is confirming if your PowerStore systems are exposed and relevant.

Limited access user can gain full control.
Critical systems could be compromised internally.
Confirm relevance and exposure of systems.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by leveraging their existing authenticated access to the Dell PowerStore system. Once authenticated with limited privileges, they can trigger the OS command injection flaw. Successful exploitation could allow them to escalate their privileges to root on the appliance, granting them full control.

Authenticated access with limited privileges.
Triggers OS command injection flaw.
Leads to privilege escalation to root.

Live Threat

Current exploitation, exposure, and threat context

An authenticated user with limited privileges could exploit a vulnerability in Dell PowerStore to escalate their privileges to root on the appliance. This means an attacker could gain complete control over the storage system.

Root access to the appliance.
Remote, authenticated access.
Compromise of the storage appliance.

Operational Fix

Recommended remediation, mitigation, and detection steps

Addressing this OS command injection vulnerability in Dell PowerStore likely involves coordination between infrastructure or storage platform teams responsible for the appliance and potentially application owners if the storage is directly tied to specific business applications. The first practical step is to identify all PowerStore instances, determine their reachability and criticality, and then locate the accountable owner for each. Planning remediation should then be risk-based, considering factors like access controls and the potential for privilege escalation.

Storage platform or infrastructure teams own this.
Verify appliance reachability and criticality first.
Plan vendor coordination for a fix.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Free EASM Trial See How Signal Works

Frequently asked questions

What is Dell PowerStore?

Dell PowerStore is an enterprise storage appliance used by organizations to manage, store, and protect high-value data. It serves as a foundational component in data center infrastructure, providing scalable storage capacity and performance for diverse enterprise applications.

What does OS command injection mean for CVE-2026-103813?

This vulnerability falls under the CWE-78 weakness class, which happens when an application improperly neutralizes special elements used in an OS command. In this specific case, it allows an attacker to inject and execute their own unauthorized commands directly on the appliance's underlying operating system.

How is this command injection vulnerability triggered?

An attacker must already have authenticated access to the system with limited privileges to trigger the flaw. Simply having network connectivity to the appliance is not enough; the attacker must first bypass initial authentication barriers to interact with the interface where the command injection occurs.

Is my Dell PowerStore at risk?

According to Halo Surface Signal, this is unlikely for most users because these appliances are designed to operate within protected, internal network segments. They are not intended for direct public internet exposure, meaning the primary risk is limited to attackers who have already gained a foothold inside your private management network.

What steps should I take if I manage Dell PowerStore?

Begin by creating an inventory of all your PowerStore instances to assess their specific network reachability and business criticality. Work with your storage and infrastructure teams to verify the status of these assets and monitor official vendor communication channels for security updates or recommended configuration changes.

References

www.dell.com/support/kbdoc/en-us/000527640/dsa-2026-479-dell-power…

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.