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CVE-2021-21551Dell dbutil Driver Insufficient Access Control Vulnerability
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.
8.8 HIGHEPSS 79.62%⚡ Known Exploited (CISA KEV)NVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.8 | HIGH | 3.1dell (CNA) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| 7.8 | HIGH | 3.1NVD | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 4.6 | MEDIUM | 2.0NVD | AV:L/AC:L/Au:N/C:P/I:P/A:P |
CISA required action
⚡ Known exploited · remediation due Apr 21, 2022
Apply updates per vendor instructions.
Details
- CVE ID
- CVE-2021-21551
- Status
- Analyzed
- Assigner (CNA)
- dell
- Published
- May 4, 2021
- Last modified
- 2026-06-17 03:35 UTC
- Weaknesses
- CWE-782 · Exposed IOCTL with Insufficient Access Control
Affected Products
As published by the CNA in the CVE record.
Delldbutil1 version range
- 2.3
References
- packetstormsecurity.com http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html
- packetstormsecurity.com http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html
- dell.com https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21551