Back to the CVE list
CVE-2021-21551 CISA KEV · Actively exploited

Dell dbutil Driver Insufficient Access Control Vulnerability

CVSS score

—

EPSS probability

%80.1

Risk score

—

Published

4 y ago

Related Security News

Articles and analysis bulletins in which the press and security publications have covered this vulnerability:

SentinelOne13.10.2026

Bring Your Own Vulnerable Driver: The Trust Gap Attackers Operate Inside

Uncover how BYOVD attacks exploit signing trust over disposable drivers, and why enforcing certificate revocation is essential for modern endpoint defense.

Cisco Talos20.08.2026

UAT-10147 deploys SPECTRE: A cross-platform implant with Linux rootkit and BYOVD capabilities

The newly identified SPECTRE implant represents an evolution in commodity intrusion tooling, integrating cross-platform C2 operations, process injection, credential theft, anti-analysis protections, and kernel-level endpoint detection and response (EDR) bypass functionality.

Similar Vulnerabilities

Get this vulnerability through the API

Affected products, version ranges, exploitation status and patch information in a single request, with a free key.

curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2021-21551"