CVE-2026-79944: Dell Secure Connect Gateway Privilege Escalation

CVE-2026-79944 Overview

CVE-2026-79944 is a Least Privilege Violation vulnerability [CWE-272] affecting Dell Secure Connect Gateway (SCG) 5.0. The flaw resides in both the SCG 5.0 Appliance (versions prior to 5.36.00.16) and the SCG 5.0 Application (versions prior to 5.36.00.00). An attacker with high privileges and local access to the appliance can abuse the weakness to gain unauthorized access to resources beyond their intended scope. Dell disclosed the issue under advisory DSA-2026-382 and released fixed versions to remediate the flaw.

Critical Impact
A locally authenticated, high-privileged attacker can leverage the least privilege violation in Dell SCG 5.0 to obtain unauthorized access, undermining privilege boundaries on the appliance.

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 (per DSA-2026-382)

Discovery Timeline

2026-09-09 - CVE-2026-79944 published to the National Vulnerability Database
2026-09-09 - Last updated in NVD database

Technical Details for CVE-2026-79944

Vulnerability Analysis

CVE-2026-79944 is classified as a Least Privilege Violation under [CWE-272]. The Dell Secure Connect Gateway grants a component or user more privileges than required to perform its intended function. An authenticated actor with elevated local access can exploit this misconfiguration to reach resources or actions that should remain segmented. The vulnerability does not expose confidential data directly, but it enables limited integrity and availability impact on the appliance. Exploitation requires local access and high privileges, which narrows the realistic attacker profile to insiders or actors who have already compromised a privileged account.

Root Cause

The root cause is improper enforcement of the principle of least privilege within the SCG 5.0 Appliance and Application. Specific processes, service accounts, or interfaces operate with broader permissions than needed. This allows a caller who already holds high privileges to pivot into actions the design intended to restrict, resulting in unauthorized access as described in Dell advisory DSA-2026-382.

Attack Vector

The attack vector is local. An attacker must first authenticate to the SCG appliance with high privileges before triggering the flaw. Because user interaction is not required and attack complexity is low, exploitation is straightforward once the prerequisites are met. The vulnerability cannot be reached remotely without prior access, and no public proof-of-concept or in-the-wild exploitation has been reported.

No verified exploit code is available. Refer to the Dell Security Advisory DSA-2026-382 for vendor-supplied technical details.

Detection Methods for CVE-2026-79944

Indicators of Compromise

Unexpected privileged process executions or service invocations on the SCG appliance outside routine administrative windows.
Configuration or file modifications performed by accounts that historically do not perform those actions.
Audit log entries showing privilege boundary crossings between SCG components.

Detection Strategies

Baseline the normal behavior of SCG service accounts and alert on deviations such as new command execution, file writes, or privilege elevations.
Correlate local shell sessions on the SCG appliance with change events to identify unauthorized use of high-privileged accounts.
Review Dell SCG audit logs for actions that indicate access to resources outside a user's intended scope.

Monitoring Recommendations

Forward SCG appliance logs to a centralized SIEM or data lake for retention and correlation with identity telemetry.
Monitor authentication events for privileged accounts used with SCG, including console, SSH, and management API access.
Track version and patch state of all SCG 5.0 Appliance and Application instances to confirm remediation coverage.

How to Mitigate CVE-2026-79944

Immediate Actions Required

Upgrade Dell SCG 5.0 Appliance to version 5.36.00.16 or later and SCG 5.0 Application to 5.36.00.00 or later.
Inventory all SCG deployments, including virtual editions, and confirm which instances remain on vulnerable builds.
Restrict local and administrative access to the SCG appliance to a minimal set of trusted operators.

Patch Information

Dell published fixed builds under advisory DSA-2026-382. Apply the vendor-supplied updates to both the Appliance (5.36.00.16+) and the Application (5.36.00.00+) to eliminate the least privilege violation.

Workarounds

Limit the number of accounts granted high privileges on the SCG appliance and rotate credentials for existing privileged users.
Enforce network segmentation so that only authorized administrative hosts can reach SCG management interfaces.
Enable and review audit logging on the SCG appliance until patching is completed to detect abuse attempts early.

bash

# Verify installed Dell SCG version before and after patching
# Replace <scg-host> with the target appliance
ssh admin@<scg-host> "scgcli system version"

# Confirm the Appliance is at 5.36.00.16 or later
# Confirm the Application is at 5.36.00.00 or later