CVE-2026-80134: Dell SCG 5.0 Auth Bypass Vulnerability

CVE-2026-80134 Overview

CVE-2026-80134 is a hard-coded credentials vulnerability [CWE-798] in Dell Secure Connect Gateway (SCG) 5.0. The flaw affects 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. An unauthenticated attacker with remote network access can leverage embedded credentials to gain unauthorized access to the appliance. Dell addressed the issue in security advisory DSA-2026-382.

Critical Impact
Remote, unauthenticated attackers can authenticate to Dell Secure Connect Gateway using hard-coded credentials, gaining access to a system that brokers support connectivity to enterprise infrastructure.

Affected Products

Dell Secure Connect Gateway 5.0 Appliance versions prior to 5.36.00.16
Dell Secure Connect Gateway 5.0 Application versions prior to 5.36.00.00
Dell Secure Connect Gateway Virtual Edition

Discovery Timeline

2026-09-07 - CVE-2026-80134 published to NVD
2026-09-08 - Last updated in NVD database

Technical Details for CVE-2026-80134

Vulnerability Analysis

Dell Secure Connect Gateway (SCG) is an appliance that establishes remote support connectivity between Dell infrastructure at customer sites and Dell services. The vulnerability stems from credentials embedded directly in the shipped product. Because the credentials ship with every affected release, they are shared across deployments and cannot be rotated by administrators through normal configuration.

A remote attacker who reaches the appliance over the network can authenticate without prior compromise or social engineering. Successful authentication yields access to functions that manage device telemetry, remote support sessions, and connections into internal infrastructure that SCG proxies.

Root Cause

The root cause is the presence of hard-coded credentials [CWE-798] within the SCG 5.0 Appliance and Application code paths. Static secrets embedded in firmware or application binaries bypass the identity controls that would otherwise protect authentication interfaces, since defenders cannot revoke or change them without a vendor patch.

Attack Vector

Exploitation requires network reachability to the SCG management interface. The attacker submits the embedded credentials to an authentication endpoint exposed by the appliance or application. No user interaction is required, and no prior privileges on the target are necessary. The higher attack complexity reflected in the CVSS vector suggests conditions such as knowledge of the specific credentials or timing constraints during authentication.

No public proof-of-concept exploit is currently listed for CVE-2026-80134. Refer to the Dell Security Update DSA-2026-382 advisory for vendor technical details.

Detection Methods for CVE-2026-80134

Indicators of Compromise

Successful authentication events on SCG management interfaces from unexpected source IP addresses or outside normal administrator hours.
New or unexpected remote support sessions initiated through the SCG appliance.
Configuration changes to gateway policies, connected device lists, or outbound tunnels that were not performed by authorized administrators.

Detection Strategies

Compare SCG appliance version strings against the fixed releases 5.36.00.16 (Appliance) and 5.36.00.00 (Application) to identify exposed instances.
Alert on authentication attempts to SCG management endpoints from network segments that should not reach the appliance.
Correlate SCG audit logs with network flow data to identify sessions that bypass jump hosts or approved administrative paths.

Monitoring Recommendations

Forward SCG audit and authentication logs to a central SIEM for retention and correlation.
Monitor egress traffic from the SCG appliance for connections to destinations outside Dell support endpoints.
Track privileged actions on downstream devices whose remote support relies on the affected SCG deployment.

How to Mitigate CVE-2026-80134

Immediate Actions Required

Upgrade Dell SCG 5.0 Appliance to version 5.36.00.16 or later and Dell SCG 5.0 Application to version 5.36.00.00 or later.
Restrict network access to the SCG management interface to a defined administrative subnet using firewall or ACL rules.
Review authentication logs for unexpected successful logins since the affected versions were deployed.

Patch Information

Dell has released fixed builds as documented in Dell Security Update DSA-2026-382. Apply the vendor-supplied updates to remove the embedded credentials from the affected components.

Workarounds

Place the SCG appliance behind a management VLAN or bastion host that limits inbound access to trusted administrators.
Disable or block external exposure of SCG management ports at the perimeter until patching is complete.
Rotate credentials and review authorization on any downstream systems that the SCG appliance can reach.

bash

# Example: restrict inbound access to SCG management interface using iptables
iptables -A INPUT -p tcp -s 10.10.20.0/24 --dport 443 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP