How severe is CVE-2021-36276?

CVE-2021-36276 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-36276 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36276?

CVE-2021-36276 primarily affects Dell Dbutildrv2.sys Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-36276?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-36276 published?

CVE-2021-36276 was published on 2021-08-09 and last updated on 2026-06-17.

CVE-2021-36276

CVE-2021-36276 is a high-severity vulnerability in Dell Dbutildrv2.sys Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-285.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-285
Affected product: Dell Dbutildrv2.sys Firmware
Published: 2021-08-09
Last modified: 2026-06-17

Description

Dell DBUtilDrv2.sys driver (versions 2.5 and 2.6) 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.

Frequently asked questions

What is CVE-2021-36276?: Dell DBUtilDrv2.sys driver (versions 2.5 and 2.6) 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.
How severe is CVE-2021-36276?: CVE-2021-36276 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-36276 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36276?: CVE-2021-36276 primarily affects Dell Dbutildrv2.sys Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-36276?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-36276 published?: CVE-2021-36276 was published on 2021-08-09 and last updated on 2026-06-17.

References

https://www.dell.com/support/kbdoc/en-us/000190105/dsa-2021-152-dell-client-platform-security-update-for-an-insufficient-access-control-vulnerability-in-the-dell-dbutildrv2-sys-driver

Affected products (2)

cpe:2.3:o:dell:dbutildrv2.sys_firmware:2.5:*:*:*:*:*:*:*
cpe:2.3:o:dell:dbutildrv2.sys_firmware:2.6:*:*:*:*:*:*:*

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