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Vulnerability record · CVE-2021-3809 · published 1 February 2023

CVE-2021-3809: Hp elite dragonfly firmware improper privilege management vulnerability

Hp · Elite Dragonfly Firmware

Potential security vulnerabilities have been identified in the BIOS (UEFI Firmware) for certain HP PC products, which might allow arbitrary code execution. HP is releasing firmware updates to mitigate these potential vulnerabilities.

7.8 CVSS 3.1 High EPSS 0.25% · top 85.3% CWE-269 · Improper privilege management
7.8CVSS 3.1 base score
0.25%EPSS exploitation probability, 30 days
NoNot in CISA KEV
150Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Potential security vulnerabilities have been identified in the BIOS (UEFI Firmware) for certain HP PC products, which might allow arbitrary code execution. HP is releasing firmware updates to mitigate these potential vulnerabilities.

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

Affected products

150 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.hp.com/us-en/document/ish_6184733-6184761-16/hpsbhf03788 Vendor Advisory
https://support.hp.com/us-en/document/ish_6184733-6184761-16/hpsbhf03788 Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2021-3809), CISA KEV, FIRST EPSS (scores of 2026-10-18). This page is refreshed as NVD updates the record.