CVE-2026-79963 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 Download of Code Without Integrity Check vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to command execution.
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Analysis
by VulDB Data Team • 09/09/2026
The identified security flaw resides within Dell SCG 5.0 Appliance versions prior to build 5.36.00.16 and the corresponding Application versions prior to 5.36.00.00. This vulnerability is classified as a Download of Code Without Integrity Check, which falls under the broader category of CWE-829: Inclusion of Functionality from Untrusted Control Sources. The core technical deficiency involves the application's failure to perform cryptographic verification or integrity validation on code artifacts downloaded during its operational lifecycle. When the system retrieves external components, scripts, or binaries, it does not verify that these items have been signed by a trusted authority or match an expected hash value. This omission creates a critical gap in the supply chain security model of the appliance, allowing any entity capable of intercepting or manipulating network traffic to inject malicious payloads into the update or extension mechanism.
An unauthenticated attacker with remote access can exploit this architectural weakness to achieve arbitrary code execution on the affected system. By positioning themselves within the network path or compromising a trusted repository that the SCG appliance contacts, an adversary can substitute legitimate software updates with maliciously crafted equivalents. Since the application proceeds to execute these downloaded components without verifying their authenticity, the injected payload runs with the privileges of the underlying service account. This typically results in full system compromise, granting the attacker complete control over the storage infrastructure's management plane. The ability to execute code remotely and without authentication significantly lowers the barrier for exploitation, making this a high-severity risk that can be leveraged by automated attack tools or opportunistic threat actors seeking initial access points within enterprise networks.
The operational impact of this vulnerability extends beyond immediate system compromise to include severe data integrity risks and potential lateral movement within the network environment. Dell SCG appliances often serve as critical components in storage area networks, managing sensitive block-level data for multiple servers and applications. Compromise of the management interface allows an attacker to alter configuration settings, potentially leading to denial of service conditions or unauthorized access to stored data. Furthermore, because these systems are frequently integrated with broader IT infrastructure through APIs and monitoring tools, a compromised SCG appliance can serve as a pivot point for attackers to target other assets within the organization's perimeter. This aligns with ATT&CK technique T1195: Supply Chain Compromise, where adversaries exploit trusted relationships between entities to gain access to victim systems, thereby undermining trust in the entire ecosystem of connected devices and services.
Mitigation strategies must prioritize immediate patching as the primary defense vector. Administrators should upgrade Dell SCG 5.0 Appliance versions to 5.36.00.16 or later and Application versions to 5.36.00.00 or later, which address this integrity check deficiency by implementing robust cryptographic verification for all downloaded code artifacts. In environments where immediate patching is not feasible due to operational constraints, network segmentation should be enforced to restrict the appliance's ability to communicate with external repositories over untrusted networks. Additionally, deploying strict outbound firewall rules that whitelist only known and verified update servers can reduce the attack surface by preventing connections to malicious or compromised endpoints. Regular monitoring of system logs for unusual download activities and implementing digital signature verification at the network perimeter using intrusion detection systems can provide additional layers of defense against exploitation attempts involving code injection via unverified downloads.