External risk intelligence

Dell Secure Connect Gateway Command Injection Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2026-79941

Dell Secure Connect Gateway is an appliance designed to act as a gateway for remote monitoring and connectivity. It is typically deployed as a management and connectivity service at the network edge, making it an internet-facing or externally reachable service by design.

Command Injection

Dell Secure Connect Gateway

before 5.36.00.00before 5.36.00.16

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

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in Dell Secure Connect Gateway software that could allow an attacker to inject scripts remotely, potentially leading to unauthorized access and control. The main concern at this time is to confirm if this technology is in use and if so, to what extent it may be exposed.

  • A remote script injection flaw affects Dell Secure Connect Gateway.
  • Crucial to confirm if this critical gateway is in use.
  • Assess exposure and relevance to our environment.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by sending specially crafted input remotely to the Dell Secure Connect Gateway. This could allow them to inject and execute scripts, potentially impacting the confidentiality, integrity, and availability of the system.

  • Unauthenticated remote network access required.
  • Input manipulation in a command interface.
  • Script injection leading to system compromise.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an unauthenticated remote attacker to inject scripts into the affected Dell Secure Connect Gateway systems. This could occur if the system is accessible over a network, and the attacker can craft specific commands.

  • System commands and service behavior.
  • Remote network access by an attacker.
  • Compromise of system integrity and availability.

Operational Fix

Recommended remediation, mitigation, and detection steps

This critical vulnerability in Dell Secure Connect Gateway is likely to impact customers using the application or virtual appliance for remote connectivity. The first practical move involves identifying all deployments, assessing their reachability and criticality, and pinpointing the accountable owner for remediation planning.

  • Ownership: Platform or infrastructure teams.
  • Verify: Network exposure and business criticality.
  • Action: Plan remediation during maintenance windows.

Supplementary metadata

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.

Frequently asked questions

What is Dell Secure Connect Gateway?

Dell Secure Connect Gateway is a management software platform designed to simplify support and monitoring for Dell infrastructure. It acts as a centralized connectivity bridge, often deployed as a virtual appliance or application to enable automated troubleshooting, device updates, and remote diagnostic data collection for various Dell enterprise hardware.

What does Command Injection mean for CVE-2026-79941?

This vulnerability, classified as CWE-77, occurs when the software fails to properly filter special characters in user-provided input before processing it. Because the system mistakenly treats this input as part of a command, an attacker can append their own malicious instructions, forcing the gateway to execute unauthorized scripts or system commands.

How can an attacker trigger this vulnerability?

An attacker triggers this by sending specially crafted input over the network to the gateway. Importantly, this requires no legitimate user credentials to initiate. The flaw is not triggered by standard, authorized administrative tasks, but rather by malicious network traffic specifically designed to manipulate the underlying command interface of the appliance.

Why is this CVE considered relevant to internet-facing systems?

According to Halo Surface Signal, Dell Secure Connect Gateway is designed to act as a connectivity hub, which often places it at the network edge. Because the service is frequently reachable from outside the internal network, it is more susceptible to remote access attempts from unauthorized parties across the internet.

What steps should I take if I use this software?

First, locate and inventory all instances of Dell Secure Connect Gateway across your environment to understand your footprint. Once identified, evaluate the network accessibility of each instance. Finally, coordinate with your infrastructure team to review the vendor's provided updates and schedule the necessary maintenance to apply the required version patches.

References