Dell Command Update (DCU) TOCTOU Race Condition EoP in <5.7.1
CVE-2026-53477 Published on August 19, 2026
Dell Command Update (DCU), versions prior to 5.7.1, contain a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges.
Vulnerability Analysis
CVE-2026-53477 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a TOCTTOU Vulnerability?
The software checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the software to perform invalid actions when the resource is in an unexpected state. This weakness can be security-relevant when an attacker can influence the state of the resource between check and use. This can happen with shared resources such as files, memory, or even variables in multithreaded programs.
CVE-2026-53477 has been classified to as a TOCTTOU vulnerability or weakness.
Products Associated with CVE-2026-53477
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Affected Versions
Dell Command Update (DCU):- Before 5.7.1 is affected.