CVE-2026-78486 in Secure Connect Gateway
Summary
by MITRE • 09/10/2026
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 an Use of Hard-coded Cryptographic Key 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 • 09/10/2026
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 Use of Hard-coded Cryptographic Key, which corresponds directly to CWE-798 in the Common Weakness Enumeration taxonomy. The core technical issue involves the implementation of cryptographic mechanisms where secret keys are embedded directly into the source code or binary artifacts rather than being generated dynamically or stored securely in a dedicated key management system. This architectural decision fundamentally undermines the principle of defense-in-depth by removing the ability to rotate credentials independently of software updates, thereby creating a persistent and static attack surface that remains valid across all instances running the affected versions regardless of deployment context.
From an operational perspective, this vulnerability allows for significant unauthorized access scenarios because it compromises the integrity of authentication and data confidentiality mechanisms. An unauthenticated attacker possessing remote network connectivity to the Dell SCG appliance can leverage these hard-coded keys to decrypt sensitive communications or forge valid authentication tokens. This capability effectively bypasses intended security controls that rely on unique per-instance secrets, allowing malicious actors to impersonate legitimate users or administrators without needing to discover passwords through brute-force attacks or social engineering. The impact is severe as it grants the attacker a foothold within the storage management infrastructure, potentially leading to data exfiltration, configuration tampering, or further lateral movement into connected network segments depending on the privileges associated with the compromised identity.
This vulnerability aligns with several tactics and techniques in the MITRE ATT&CK framework, particularly those related to Initial Access and Credential Access. Specifically, it relates to T1078 Valid Accounts where attackers use legitimate credentials obtained through exploitation of weak cryptographic practices. It also touches upon T1552 Unsecured Credentials as the hard-coded key represents a form of credential exposure due to improper storage mechanisms. The ability for an unauthenticated remote attacker to exploit this flaw highlights critical gaps in secure software development lifecycle (SSDLC) processes, specifically failing to adhere to NIST SP 800-57 guidelines regarding proper key management and rotation policies which mandate that cryptographic keys must not be static or publicly discoverable within the application binary.
To mitigate this risk, immediate action is required to upgrade both the Dell SCG Appliance software and the associated Application components to version 5.36.00.16 and later for appliances, and 5.36.00.00 or later for applications respectively. These updated versions address the underlying implementation flaw by replacing hard-coded secrets with dynamically generated keys stored in secure hardware modules or encrypted configuration stores accessible only through proper authentication channels. In addition to patching, organizations should implement network segmentation strategies to restrict remote access to management interfaces and enforce strict firewall rules that limit exposure of these services to trusted administrative subnets only. Continuous monitoring for anomalous login attempts or unusual cryptographic operations can also serve as a compensating control while the infrastructure transition is underway, ensuring that any exploitation attempts are detected before they result in full system compromise.