High severity · published Aug 19, 2026
CVE-2026-53477
Dell Command Update (DCU), versions prior to 5.7.1, contain a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability
7.8
CVSS
0.1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DC
Dell Command Update (DCU) · Dell
before 5.7.1 · source: vendor
CU
Command Update · Dell
before 5.7.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53477
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-53477
Vendor Advisory
https://www.dell.com/support/kbdoc/en-us/000501378/dsa-2026-309-security-update-for-dell-command-update-for-multiple-vulnerabilities
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