CVE-2026-79635 in Secure Connect Gateway
Summary
by MITRE • 09/09/2026
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, contains a Server-Side Request Forgery (SSRF) vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access.
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Analysis
by VulDB Data Team • 09/09/2026
The identified security flaw resides within Dell SCG versions prior to 5.36.00.16 for the appliance and 5.36.00.00 for the application component, representing a critical Server-Side Request Forgery vulnerability that compromises the integrity of internal network communications. This type of vulnerability occurs when an application accepts user-supplied input as part of a request to another service without sufficiently validating or sanitizing the destination address. In this specific instance, the architecture allows an unauthenticated actor with remote access capabilities to manipulate these inputs, effectively tricking the SCG appliance into making HTTP requests on behalf of the attacker to internal resources that are not intended for public exposure. The presence of such a flaw indicates a fundamental failure in input validation logic within the application layer, where trust boundaries between external users and internal backend services are inadequately enforced.
From an operational perspective, the exploitation of this SSRF vulnerability can lead to severe unauthorized access scenarios. An attacker could leverage this weakness to probe internal network segments, scan for other vulnerable services running on localhost or private IP ranges, or interact with management interfaces that should remain inaccessible from outside networks. This capability effectively bypasses perimeter security controls such as firewalls and intrusion detection systems because the malicious requests originate from a trusted source within the DMZ or protected zone. The potential impact extends beyond simple information disclosure; it can serve as an initial foothold for deeper network penetration, allowing attackers to map internal infrastructure, exfiltrate sensitive configuration data, or potentially chain this flaw with other vulnerabilities to achieve remote code execution on backend systems.
This vulnerability aligns closely with Common Weakness Enumeration identifier CWE-918, which specifically addresses Server-Side Request Forgery flaws where a web server retrieves a specified resource from a user-supplied URL without proper validation of the destination address. Furthermore, in terms of offensive security tactics, this exploit maps to MITRE ATT&CK technique T1557, known as Adversary-in-the-Middle or Lateral Tool Transfer via SSRF depending on the specific exploitation vector used to pivot across the network. The lack of authentication required for initial access exacerbates the risk profile significantly, classifying it as a high-severity issue that demands immediate remediation attention due to its ease of exploitation and broad impact potential within enterprise storage environments.
To mitigate this vulnerability, organizations must prioritize applying the vendor-released patches immediately, ensuring all Dell SCG appliances are updated to version 5.36.00.16 or later and application components to 5.36.00.00 or higher. In scenarios where patching is temporarily delayed due to operational constraints, defensive measures should include implementing strict egress filtering rules on the network perimeter to restrict outbound connections from the SCG appliance to only known and necessary internal endpoints. Additionally, deploying web application firewalls with specific signatures for SSRF detection can help block malicious requests before they reach the vulnerable application logic. It is also advisable to review access control lists to ensure that management interfaces are not exposed to untrusted networks and to monitor logs for anomalous outbound traffic patterns originating from the SCG infrastructure.