CVE-2021-21551

8.8

CVSS
High

PUBLISHED

Dell dbutil_2_3.sys driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial of service, or...

Exploited in the wild Low complexity No user interaction

Vendor: Dell
Product: dbutil
Published: May 04, 2021
EPSS: —

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.

cisa metasploit

CVSS scores

CVSS v3.1 8.8 High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploitation status

Exploited in the wild

Recorded 2022-03-31 00:00:00 UTC · Source

SSVC decision points

Exploitation: active
Automatable: No
Technical impact: total

References

Known exploited vulnerability sources

Catalogues that list this CVE as a known exploited vulnerability.

Source	Added
CISA	Mar 31, 2022

Scanner integrations

Scanner	Reference	Detected
Metasploit	https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/local/cve_2021_21551_dbutil_memmove.rb	Apr 28, 2025

Potential proof of concepts

These PoCs are unverified and could contain malware. Use at your own risk.

cve_2021_21551_dbutil_memmove

metasploit · Created Unknown

Metasploit module for CVE-2021-21551

nanabingies/CVE-2021-21551

github · Created 2023-01-07 02:42:59 UTC · 25 stars

Dell Driver EoP (CVE-2021-21551)

ihack4falafel/Dell-Driver-EoP-CVE-2021-21551

github · Created 2021-09-03 01:47:03 UTC · 32 stars

Dell Driver EoP (CVE-2021-21551)

mzakocs/CVE-2021-21551-POC

github · Created 2021-06-02 05:13:07 UTC · 24 stars

An extended proof-of-concept for the CVE-2021-21551 Dell ‘dbutil_2_3.sys’ Kernel Exploit

mathisvickie/CVE-2021-21551

github · Created 2021-05-30 10:15:10 UTC · 56 stars

arbitrary kernel read/write in dbutil_2_3.sys, Proof of Concept Local Privilege Escalation to nt authority/system

ch3rn0byl/CVE-2021-21551

github · Created 2021-05-21 03:13:58 UTC · 26 stars

waldo-irc/CVE-2021-21551

github · Created 2021-05-13 13:23:38 UTC · 237 stars

Exploit to SYSTEM for CVE-2021-21551

Vulnerability detail