CVE-2026-78021 in Secure Connect Gateway Policy Manager
Summary
by MITRE • 10/09/2026
Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains a Generation of Error Message Containing Sensitive Information vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Information disclosure and Information exposure.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 10/09/2026
The Dell Secure Connect Gateway Policy Manager, specifically in versions prior to 5.34.00.16, is susceptible to a critical information disclosure flaw classified under the CWE-209 category for Generation of Error Message Containing Sensitive Information. This vulnerability arises from inadequate sanitization or filtering mechanisms within the application's error handling routines. When specific malformed requests or unexpected system states occur during policy management operations, the software generates detailed diagnostic messages that are returned directly to the client without proper obfuscation. These verbose responses often include internal stack traces, database query structures, file paths, and potentially sensitive configuration parameters that reveal the underlying architecture of the deployment environment.
An unauthenticated attacker with remote network access can exploit this flaw by crafting specific HTTP requests designed to trigger these error conditions within the Policy Manager interface. Because no authentication is required for certain administrative endpoints or due to a failure in enforcing strict access controls on diagnostic interfaces, the attacker can systematically probe the application to elicit these verbose responses. The exploitation does not require complex payload delivery but rather relies on inducing specific fault states that cause the backend logic to dump internal state information into the response stream. This capability allows an adversary to map out the technology stack, identify version-specific components, and gather intelligence necessary for further targeted attacks against known vulnerabilities in those specific software versions or dependencies.
The operational impact of this vulnerability extends beyond simple data leakage. By exposing sensitive configuration details and internal system structures, attackers can gain a deeper understanding of the security posture of the Dell Secure Connect Gateway deployment. This information exposure facilitates more sophisticated attack vectors such as SQL injection, cross-site scripting, or privilege escalation attempts by providing precise context about how the application processes input and manages state. Furthermore, knowledge of specific file paths and library versions enables adversaries to search for publicly available exploits tailored to those exact components, significantly lowering the barrier to entry for subsequent compromise activities against the network infrastructure protected by the gateway.
Mitigation strategies must prioritize immediate patching as the primary defense mechanism. Organizations running affected versions should upgrade Dell Secure Connect Gateway Policy Manager to version 5.34.00.16 or later, where this issue has been resolved through improved error handling practices that ensure generic messages are returned regardless of internal failures. In addition to software updates, administrators should implement strict network segmentation and firewall rules to restrict access to the management interface exclusively from trusted administrative IP addresses. Enabling multi-factor authentication for all administrative accounts adds a critical layer of defense against unauthenticated exploitation attempts. Regular security audits focusing on error handling configurations across web applications are also recommended to prevent similar information disclosure vulnerabilities in other components of the infrastructure, aligning with OWASP Top 10 guidelines regarding sensitive data exposure and broken access control principles found within the MITRE ATT&CK framework under techniques related to Discovery and Collection.