CVE-2026-79693 Overview
CVE-2026-79693 affects Dell Secure Connect Gateway (SCG) 5.0 Appliance and Application editions. The flaw is a Least Privilege Violation [CWE-272] that allows a high-privileged local attacker to gain unauthorized access beyond their intended scope. Dell disclosed the issue in advisory DSA-2026-382 and released fixed builds 5.36.00.16 for the Appliance and 5.36.00.00 for the Application.
Critical Impact
A local attacker with high privileges can exceed assigned permission boundaries on the SCG host, gaining unauthorized access to protected resources or configuration on 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 covered by advisory DSA-2026-382
Discovery Timeline
- 2026-09-09 - CVE CVE-2026-79693 published to NVD
- 2026-09-09 - Last updated in NVD database
Technical Details for CVE-2026-79693
Vulnerability Analysis
Dell Secure Connect Gateway brokers remote support connectivity between Dell infrastructure and Dell backend services. The affected component enforces privilege boundaries incorrectly, allowing an authenticated high-privileged local user to perform actions or reach resources that should require a stricter authorization check.
The issue is classified under CWE-272: Least Privilege Violation. In practice, this class of flaw arises when a process, service account, or administrative role holds more permissions than its function requires, and the excess capability can be abused for unauthorized access. Exploitation requires local access to the appliance and existing elevated credentials, which limits the attack surface but does not eliminate risk in shared operations environments.
Root Cause
The root cause is improper enforcement of the principle of least privilege inside SCG 5.0. A component executes with, or exposes, privileges that exceed what its operational role requires. When a high-privileged local user interacts with that component, the excess authority becomes reachable.
Attack Vector
The attack vector is local. An attacker must already hold high privileges on the SCG host, for example through legitimate administrative access, credential reuse, or a prior compromise. Once local, the attacker leverages the over-privileged component to read, modify, or execute actions that should be gated by additional authorization. The vulnerability does not require user interaction and impacts confidentiality and integrity at a limited scope.
No public proof-of-concept or exploit code is available. See Dell's DSA-2026-382 advisory for vendor-supplied technical details.
Detection Methods for CVE-2026-79693
Indicators of Compromise
- Unexpected configuration changes on the SCG appliance made by accounts that should not have that capability.
- Local privilege-sensitive actions performed outside normal change windows.
- Access to SCG configuration files, credentials, or service data by accounts outside the documented administrative role.
Detection Strategies
- Compare installed SCG build against fixed versions 5.36.00.16 (Appliance) and 5.36.00.00 (Application) and flag hosts below either baseline.
- Audit local role assignments on SCG hosts and identify accounts with administrative privileges that are not required for daily operations.
- Correlate local logon events on SCG with subsequent privileged process execution or configuration writes.
Monitoring Recommendations
- Forward SCG appliance logs, OS audit logs, and authentication events to a centralized log platform for retention and correlation.
- Alert on new or modified privileged local accounts on the SCG host.
- Track process execution and file access under the SCG service account to establish a baseline and flag deviations.
How to Mitigate CVE-2026-79693
Immediate Actions Required
- Upgrade Dell SCG 5.0 Appliance to version 5.36.00.16 or later.
- Upgrade Dell SCG 5.0 Application to version 5.36.00.00 or later.
- Review and reduce the number of accounts holding high privileges on SCG hosts to the minimum required.
- Rotate credentials for any local administrative accounts on SCG appliances if suspicious activity is observed.
Patch Information
Dell has published fixes in advisory DSA-2026-382. Apply the vendor-supplied updates from the Dell Security Update DSA-2026-382 knowledge base article. The fix raises the SCG Appliance to 5.36.00.16 and the SCG Application to 5.36.00.00.
Workarounds
- Restrict local and management-plane access to SCG hosts to a small, audited set of administrators.
- Place SCG appliances on a segmented management network reachable only through jump hosts with multi-factor authentication.
- Enable detailed audit logging on the SCG host until the patched version is deployed.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.