CVE-2026-61410: Dell SCG 5.0 Appliance RCE Vulnerability

CVE-2026-61410 Overview

CVE-2026-61410 is a missing authorization vulnerability [CWE-862] affecting Dell Secure Connect Gateway (SCG) 5.0. The flaw lets an unauthenticated remote attacker execute commands on the target system by sending a specially crafted request that bypasses intended restrictions on code execution. Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00 are affected. Dell has published advisory DSA-2026-382 and recommends customers upgrade at the earliest opportunity.

Critical Impact
Unauthenticated remote attackers can achieve remote code execution against exposed Dell SCG 5.0 instances, compromising the confidentiality and integrity of the appliance and any systems it brokers.

Affected Products

Dell Secure Connect Gateway (SCG) 5.0 Appliance versions prior to 5.36.00.16
Dell Secure Connect Gateway (SCG) 5.0 Application versions prior to 5.36.00.00
Dell Secure Connect Gateway Virtual Edition deployments referenced in DSA-2026-382

Discovery Timeline

2026-09-07 - CVE-2026-61410 published to the National Vulnerability Database (NVD)
2026-09-09 - Last updated in the NVD database

Technical Details for CVE-2026-61410

Vulnerability Analysis

Dell Secure Connect Gateway is the remote support and telemetry broker that connects Dell enterprise infrastructure to Dell support services. The affected component exposes functionality over the network without performing an authorization check on the caller. An attacker who reaches the SCG service can invoke privileged application logic and drive it toward command execution on the underlying host. Because no credentials or user interaction are required, exploitation reduces to reaching the exposed service and delivering a crafted request. The Exploit Prediction Scoring System (EPSS) currently rates the vulnerability at 1.316% with a percentile of 69.1, but exposure of SCG to untrusted networks materially increases real-world risk.

Root Cause

The root cause is a missing authorization check [CWE-862] on a sensitive request handler in the SCG application. The handler assumes callers have already been vetted by an upstream control that is absent or bypassable. As a result, the server processes requests from principals that should be rejected before any application logic runs.

Attack Vector

The attack vector is network-based and requires no authentication or user interaction. An attacker sends a crafted HTTP request to the SCG management interface, triggers the unauthorized code path, and coerces the application into executing attacker-supplied commands. No verified public proof-of-concept is available at the time of writing. Refer to the Dell Security Update DSA-2026-382 for vendor-provided technical detail.

Detection Methods for CVE-2026-61410

Indicators of Compromise

Unexpected child processes spawned by the SCG application service or its web server user
Outbound network connections from the SCG host to unfamiliar external IPs shortly after inbound HTTP(S) requests
New or modified files under SCG application directories, cron entries, or systemd units created outside a maintenance window
HTTP requests to SCG management endpoints from source IPs outside the documented Dell support and administrator ranges

Detection Strategies

Inventory all Dell SCG 5.0 Appliance and Application instances and confirm running versions against 5.36.00.16 and 5.36.00.00
Alert on process-lineage anomalies where the SCG service parent spawns shells, interpreters, or reconnaissance binaries such as id, whoami, curl, or wget
Review web and reverse-proxy logs for anomalous POST or PUT requests to SCG API paths from unauthenticated sessions
Correlate SCG host EDR telemetry with perimeter logs to identify pre-exploitation scanning of the management port

Monitoring Recommendations

Forward SCG application, web server, and OS audit logs to a centralized SIEM for retention and correlation
Baseline outbound connectivity from SCG hosts and alert on deviations, especially connections to non-Dell destinations
Monitor for privilege changes, new local accounts, and SSH key additions on SCG appliances

How to Mitigate CVE-2026-61410

Immediate Actions Required

Upgrade Dell SCG 5.0 Appliance to version 5.36.00.16 or later and Dell SCG 5.0 Application to 5.36.00.00 or later as directed by DSA-2026-382
Restrict network access to SCG management interfaces to trusted administrative subnets only
Audit SCG hosts for signs of prior exploitation, including unexpected processes, files, and outbound connections
Rotate any credentials, tokens, or certificates stored on or accessible from the SCG appliance if compromise is suspected

Patch Information

Dell has released fixed builds for both the Appliance and Application variants of Secure Connect Gateway 5.0. Refer to the Dell Security Update DSA-2026-382 for download locations and upgrade instructions.

Workarounds

Place SCG behind a network firewall or reverse proxy that enforces source-IP allow-lists for management endpoints
Disable or block external exposure of the SCG web management interface until patches are applied
Segment SCG appliances into a dedicated management VLAN with strict egress filtering to Dell support destinations only

bash

# Example iptables restriction limiting SCG management access to a trusted admin subnet
iptables -A INPUT -p tcp --dport 443 -s 10.10.20.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP