Race Condition Vulnerability in Dell Command Update Affects Local User Permissions
CVE-2026-53477

7.8HIGH

Key Information:

Vendor

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

What is CVE-2026-53477?

The vulnerability in Dell Command Update allows a low-privileged attacker with local access to exploit a Time-of-check Time-of-use (TOCTOU) race condition. This could result in an elevation of privileges, enabling the attacker to perform actions that are typically restricted to higher-privileged users, thereby compromising the security of the system. Users are advised to update to version 5.7.1 or later to mitigate the risks associated with this vulnerability.

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:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dell would like to thank Johannes Hatting for reporting this issue.
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