CVE-2021-21551
8.8
HIGH
CVSS 3.1
2021-05-04•Updated 2025-10-21•KEV 2022-03-31
CISA Known Exploited Vulnerabilities
Dell dbutil Driver Insufficient Access Control Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Added to KEV
2022-03-31
Remediation due
2022-04-21
Required action
Apply updates per vendor instructions.
CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2021-21551
Description
Dell dbutil_2_3.sys driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial of service, or information disclosure. Local authenticated user access is required.
Severity
CVSS 3.1 · CNA8.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HSSVC · CISA-ADP
Exploitationactive
Automatableno
Technical impacttotal
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Dell | dbutil | 2.3 |
References
3 LinksOther references
- https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability
- http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html
- http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html
Record Details
Published
2021-05-04
Last updated
2025-10-21
Assigner (CNA)
dell
Credited to
-
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