CVE-2026-56797 is a TOCTOU race condition vulnerability in Dell Command Update (DCU) prior to version 5.7.1. This vulnerability arises when the software performs a check on a resource and then uses it without ensuring the state has not changed, allowing a local attacker with low privileges to exploit the timing window to gain elevated privileges. The CVSS 3.1 vector indicates low attack complexity, low privileges required, user interaction required, and high impact on confidentiality, integrity, and availability.

A successful exploitation of this vulnerability could allow a low privileged local attacker to elevate their privileges on the affected system, potentially gaining unauthorized access to sensitive functions or data. The impact affects confidentiality, integrity, and availability at a high level according to the CVSS score.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict local access to trusted users only and monitor for unusual privilege escalation attempts.