CVE-2026-79972 Overview
CVE-2026-79972 is a SQL injection vulnerability [CWE-89] 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 authenticated attacker with high privileges and remote network access can inject crafted SQL statements into vulnerable database queries. Successful exploitation leads to unauthorized data access and integrity impact on the underlying database.
Critical Impact
Remote SQL injection in Dell Secure Connect Gateway allows a high-privileged attacker to read, modify, or delete sensitive data across the appliance's backend database.
Affected Products
- Dell Secure Connect Gateway 5.0 Appliance (Virtual Edition) versions prior to 5.36.00.16
- Dell Secure Connect Gateway 5.0 Application versions prior to 5.36.00.00
- Dell SCG deployments referenced under advisory DSA-2026-382
Discovery Timeline
- 2026-09-09 - CVE-2026-79972 published to NVD
- 2026-09-09 - Last updated in NVD database
Technical Details for CVE-2026-79972
Vulnerability Analysis
Dell Secure Connect Gateway is the remote support and telemetry gateway used to relay device data between customer environments and Dell support infrastructure. The affected versions fail to properly neutralize special elements passed into an SQL command. When a high-privileged authenticated user submits crafted input through an affected interface, the input is concatenated into a SQL query without adequate sanitization or parameterization.
The issue is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command. Because SCG operates as a trusted bridge into Dell-managed infrastructure, database compromise can expose device inventory, telemetry, credentials, and configuration data stored on the appliance.
Root Cause
The root cause is unsafe query construction in one or more privileged administrative endpoints of the SCG management interface. User-supplied values reach the database layer without prepared statements or strict input validation, allowing SQL metacharacters to alter query structure.
Attack Vector
Exploitation requires network reachability to the SCG management interface and valid high-privileged credentials. An attacker with such access sends a crafted request containing SQL syntax, which is executed by the backend database. No user interaction is required. See the Dell Security Update DSA-2026-382 for vendor-confirmed technical scope.
Detection Methods for CVE-2026-79972
Indicators of Compromise
- Unexpected SQL syntax characters (', --, ;, UNION, SELECT) in SCG web application or API request logs from authenticated administrator sessions.
- Anomalous database query patterns or long-running queries originating from the SCG application service account.
- Administrative logins from unusual source IP addresses or at atypical times preceding suspicious query activity.
Detection Strategies
- Review SCG application and web server access logs for POST or GET parameters containing SQL keywords or encoded equivalents such as %27 and %3B.
- Correlate authenticated admin sessions with database audit logs to identify queries that deviate from the appliance's normal query set.
- Alert on privilege escalation, credential creation, or unexpected data export operations following an admin login.
Monitoring Recommendations
- Enable verbose audit logging on the SCG appliance and forward logs to a centralized SIEM for retention and correlation.
- Monitor administrative account usage and enforce alerting on new or dormant high-privileged accounts being used.
- Track outbound connections from the SCG appliance for signs of data staging or exfiltration.
How to Mitigate CVE-2026-79972
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, per DSA-2026-382.
- Audit all high-privileged SCG accounts, rotate credentials, and remove accounts that are no longer required.
- Restrict network access to the SCG management interface to a small set of trusted administrative subnets.
Patch Information
Dell has released fixed versions addressing CVE-2026-79972. Apply Dell SCG 5.0 Appliance 5.36.00.16 or later and Dell SCG 5.0 Application 5.36.00.00 or later. Full remediation details are available in the Dell Security Update DSA-2026-382.
Workarounds
- Limit SCG administrative access to jump hosts or bastion systems that enforce multi-factor authentication.
- Apply network segmentation and firewall rules to block untrusted networks from reaching the SCG management ports.
- Continuously monitor and audit administrator activity until the patched version is deployed.
# Example firewall 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
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
