Description

Dell Command Update (DCU), versions prior to 5.7.1, contain a Missing Authorization vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Unauthorized access.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.3",
  "pubDate": "2026-08-19T15:17:12.603Z",
  "pubdate": "2026-08-19T15:17:12.603Z",
  "executiveSummary": "Dell Command Update (DCU) versions prior to 5.7.1 contain a Missing Authorization vulnerability. This security flaw enables a threat actor possessing low-privileged local access to potentially exploit the system, resulting in unauthorized access to sensitive functionalities or data handled by the application.\nThe vulnerability arises from insufficient authorization checks within the affected software, allowing local users to interact with privileged components or interfaces that should be restricted. Given the requirement for local access, an attacker must already be authenticated to the target operating system with minimal privileges. Successful exploitation bypasses intended security boundaries, potentially granting the attacker elevated capabilities or unauthorized resource access within the context of the local system.\nThe risk implication is moderate to high depending on the specific resources exposed through the unauthenticated or under-authenticated interfaces within Dell Command Update. Organizations utilizing vulnerable versions of Dell Command Update across enterprise fleets face potential local privilege escalation vectors or unauthorized manipulation of system firmware and driver management features. Remediation requires updating the affected software to version 5.7.1 or later to enforce proper authorization controls.",
  "technicalDetails": "The root cause of this vulnerability is a Missing Authorization flaw within Dell Command Update (DCU) in versions prior to 5.7.1. Specifically, the application fails to adequately validate whether a calling process or local user possesses the appropriate authorization level before executing sensitive internal functions or handling inter-process communication (IPC) requests.\nThe vulnerable component resides within the core architecture of Dell Command Update, which manages system updates, BIOS configurations, driver installations, and hardware monitoring. Because these administrative tasks typically require elevated execution contexts, improper access control enforcement on exposed endpoints allows unprivileged actors to interact with routines intended solely for administrative or system-level invocation.\nRegarding exploitation requirements, the attack vector is strictly local. The adversary must already possess local access to the target host and a low privilege level within the operating system. Network exposure is not required, as the attack does not rely on remote network protocols or listening sockets, but rather on local communication channels such as local procedure calls, named pipes, or API endpoints exposed by the Dell Command Update service or companion binaries.\nThe step-by-step attack flow proceeds as follows: First, the low-privileged local attacker identifies the exposed interface, service, or API method implemented by Dell Command Update that lacks proper authorization checks. Second, the attacker formulates a crafted request or command designed to invoke the target function. Third, the attacker transmits the payload or invokes the API locally. Fourth, because the vulnerable component fails to verify the caller's privileges against a robust access control list (ACL), the application processes the request and executes the privileged functionality on behalf of the low-privileged user.\nThe post-exploitation impact includes unauthorized access to restricted application data, potential manipulation of update mechanisms, or secondary local privilege escalation if the unverified functions grant broader system control. Affected versions encompass all deployments of Dell Command Update prior to version 5.7.1."
}