CVE-2026-79961 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 Missing Authentication for Critical Function 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 5.0 Appliance versions prior to build 5.36.00.16 and the corresponding Dell SCG 5.0 Application software prior to version 5.36.00.00, representing a critical failure in access control mechanisms. This vulnerability is classified as Missing Authentication for Critical Function, which aligns with Common Weakness Enumeration identifier CWE-287. The core technical issue involves the application exposing administrative or sensitive management interfaces without requiring valid authentication credentials before processing requests. In a properly secured environment, any attempt to interact with critical system functions must be preceded by a robust verification of user identity and privileges. However, in these affected versions, the software fails to enforce this prerequisite check for specific endpoints or API calls that control essential storage cluster operations. This architectural oversight allows an attacker who has established remote network connectivity to bypass authentication gates entirely, effectively treating unauthenticated requests as if they originated from a privileged administrator.
The operational impact of this vulnerability is severe due to the nature of the Storage Cluster Gateway platform, which serves as a central management point for Dell storage infrastructure. An unauthenticated actor with remote access can exploit this flaw to gain unauthorized control over critical functions without needing valid credentials. This capability enables the attacker to perform actions such as modifying configuration settings, accessing sensitive data stored within the managed systems, or potentially disrupting service availability by altering operational parameters. The absence of authentication removes a fundamental layer of defense in depth, allowing lateral movement and privilege escalation if the compromised management interface is integrated with other network segments. Furthermore, because this affects both the appliance firmware and the application software, the vulnerability persists across different deployment models including virtualized and physical instances running these specific legacy versions.
From an offensive security perspective, this weakness facilitates initial access and subsequent control without credential brute-forcing or phishing campaigns, significantly lowering the barrier to entry for attackers. It maps directly to MITRE ATT&CK techniques related to Initial Access via valid accounts where authentication is bypassed, specifically aligning with patterns seen in API abuse and unauthenticated endpoint exploitation. The risk is exacerbated by the fact that storage management interfaces are often exposed on internal networks but may be accessible from broader network zones depending on segmentation policies. If an attacker gains remote access through other means such as a compromised workstation or misconfigured firewall rules, this vulnerability provides a direct path to full administrative control of the storage infrastructure without detection via standard authentication logging mechanisms since no login attempt is recorded for these specific unauthenticated calls.
Mitigation requires immediate remediation by upgrading both the Dell SCG 5.0 Appliance firmware and the associated application software to version 5.36.00.16 or later, which includes patches that enforce proper authentication checks on all critical functions. Organizations should verify their current build numbers against this threshold as a priority action item in their vulnerability management lifecycle. In addition to patching, it is recommended to implement network-level access controls such as IP whitelisting for the SCG management interfaces to restrict connectivity only to authorized administrative workstations and jump servers. This defense-in-depth approach ensures that even if authentication logic fails or is bypassed through other means, physical or logical network barriers prevent unauthorized remote actors from reaching the vulnerable endpoints. Regular auditing of access logs and monitoring for anomalous traffic patterns targeting storage management ports can also help detect exploitation attempts in environments where patching cannot be applied immediately due to operational constraints.