CVE-2021-21551

Known Exploited Public Exploit

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 61.02% Top 5%
KEV Since 
Vendor Advisory dell.com
Affected: Dell dbutil
Published at:
Updated at:

References

Link Tags
https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability mitigation vendor advisory
http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html exploit vdb entry third party advisory
http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-21551?
CVE-2021-21551 has been scored as a high severity vulnerability.
How to fix CVE-2021-21551?
To fix CVE-2021-21551, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21551 being actively exploited in the wild?
It is confirmed that CVE-2021-21551 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~61% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21551?
CVE-2021-21551 affects Dell dbutil.
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