CVEvulnerability

CVE-2021-21551

7.8 HIGH Known exploited Published 2021-05-04 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Dell dbutil Driver Insufficient Access Control Vulnerability — Dell dbutil Driver

Dell dbutil driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial-of-service (DoS), or information disclosure.

Added to KEV: 2022-03-31
Remediation due: 2022-04-21
Ransomware use: Unknown
Required action: Apply updates per vendor instructions.
Notes: https://nvd.nist.gov/vuln/detail/CVE-2021-21551

Status: Analyzed
Published: 2021-05-04
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 8.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1 ([email protected]): 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected]): 4.6 MEDIUM — AV:L/AC:L/Au:N/C:P/I:P/A:P
Weaknesses: CWE-782

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.

Affected configurations

• dell dbutil (<= 2.3)

Weakness · CWE (1)

CWE-782 Exposed IOCTL with Insufficient Access Control weakness

References