Time-of-check Time-of-use Race Condition in Dell Command Update
CVE-2026-56797

7.3HIGH

Key Information:

Vendor

Dell
Status
Dell Command Update (dcu)
Vendor
CVE Published:
19 August 2026

What is CVE-2026-56797?

The Dell Command Update (DCU) prior to version 5.7.1 is susceptible to a Time-of-check Time-of-use (TOCTOU) race condition vulnerability. This issue allows a low privileged attacker with local access to potentially exploit the vulnerability, leading to unauthorized elevation of privileges. It is imperative for users to update to the latest version to mitigate this security risk.

Affected Version(s)

Dell Command Update (DCU) 0 < 5.7.1

References

https://www.dell.com/support/kbdoc/en-us/000501378/dsa-20...
vendor-advisory

CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dell would like to thank SuperDevSecurity for reporting this issue.
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