CVE-2026-79694: Dell Secure Connect Gateway Information Disclosure

CVE-2026-79694 Overview

CVE-2026-79694 affects Dell Secure Connect Gateway (SCG) 5.0, both the Appliance and Application editions. The vulnerability stems from insertion of sensitive information into debugging code [CWE-215]. A low-privileged attacker with local access can retrieve exposed data from debug artifacts, leading to information disclosure. Dell addressed the flaw in SCG 5.0 Appliance 5.36.00.16 and SCG 5.0 Application 5.36.00.00 through advisory DSA-2026-382.

Critical Impact
An authenticated local attacker can access sensitive information written to debug outputs, potentially exposing configuration, credentials, or diagnostic data used by the gateway.

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 SCG Virtual Edition deployments running affected builds

Discovery Timeline

2026-09-09 - CVE-2026-79694 published to the National Vulnerability Database (NVD)
2026-09-09 - Last updated in NVD database

Technical Details for CVE-2026-79694

Vulnerability Analysis

Dell Secure Connect Gateway is the telemetry and support-connectivity component that links Dell hardware to Dell backend services. The affected versions write sensitive runtime information into debug code paths that remain accessible to local users on the appliance. This condition falls under CWE-215, Insertion of Sensitive Information Into Debugging Code.

The scope is limited to confidentiality. The advisory does not describe modification of data or disruption of service, only exposure of information that should not have been persisted or made readable to lower-privileged accounts. Exploitation requires an authenticated session on the gateway host, which narrows the attacker population but does not eliminate risk in multi-tenant or shared-administration environments.

Root Cause

Developer-oriented debug logic in SCG 5.0 records sensitive values that were intended for temporary diagnostics. These values persist in artifacts readable by low-privileged local accounts. Dell has not published the specific fields exposed, but CWE-215 typically covers credentials, session identifiers, tokens, or internal configuration written to debug logs, verbose error paths, or diagnostic bundles.

Attack Vector

Exploitation requires local access with low privileges and no user interaction. An attacker with a shell or equivalent access on the SCG host reads the debug artifact and extracts the disclosed values. No network reachability to the management interface is required. See the Dell Security Advisory DSA-2026-382 for vendor guidance.

Detection Methods for CVE-2026-79694

Indicators of Compromise

Unexpected read access to SCG debug logs, diagnostic bundles, or verbose trace files by non-administrative local accounts
Presence of credentials, tokens, or configuration values in debug output on hosts running SCG versions prior to 5.36.00.16 (Appliance) or 5.36.00.00 (Application)
Off-host copying of SCG diagnostic archives to user-writable directories or removable media

Detection Strategies

Audit file access events on SCG log and diagnostic directories to identify reads by non-privileged users
Compare installed SCG build strings against the fixed versions listed in DSA-2026-382 to identify vulnerable hosts
Search debug and diagnostic output for high-entropy strings, secret patterns, and credential keywords using a secrets-scanning tool

Monitoring Recommendations

Forward SCG host audit logs to a centralized SIEM and alert on unauthorized access to diagnostic paths
Track process execution of archive utilities (tar, zip, gzip) targeting SCG log directories by non-root accounts
Monitor for creation and export of Dell support bundles outside of scheduled maintenance windows

How to Mitigate CVE-2026-79694

Immediate Actions Required

Upgrade Dell SCG 5.0 Appliance to 5.36.00.16 or later
Upgrade Dell SCG 5.0 Application to 5.36.00.00 or later
Inventory local accounts on SCG hosts and remove any unnecessary low-privileged users
Rotate credentials and tokens that may have been exposed through debug artifacts prior to patching

Patch Information

Dell released fixes in SCG 5.0 Appliance 5.36.00.16 and SCG 5.0 Application 5.36.00.00. Full remediation guidance is documented in Dell Security Advisory DSA-2026-382. Apply the update through the standard SCG upgrade workflow and verify the build string after installation.

Workarounds

Restrict local shell access on SCG hosts to a minimal set of administrators until the patch is deployed
Tighten filesystem permissions on SCG diagnostic and log directories to block reads by non-administrative accounts
Purge historical debug bundles and diagnostic archives that may contain exposed sensitive values

bash

# Configuration example: restrict access to SCG diagnostic directories
# Adjust paths to match the actual SCG installation on the host
chown -R root:root /opt/dell/scg/logs /opt/dell/scg/diagnostics
chmod -R 750 /opt/dell/scg/logs /opt/dell/scg/diagnostics

# Identify local accounts with shell access for review
awk -F: '($7 !~ /nologin|false/) {print $1, $7}' /etc/passwd