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Vulnerability record · CVE-2021-39298 · published 16 February 2022

CVE-2021-39298: Hp z1 entry tower g5 workstation firmware improper privilege management vulnerability

Hp · Z1 Entry Tower G5 Workstation Firmware

A potential vulnerability in AMD System Management Mode (SMM) interrupt handler may allow an attacker with high privileges to access the SMM resulting in arbitrary code execution which could be used by malicious actors to bypass security mechanisms provided in the UEFI firmware.

8.8 CVSS 3.1 High EPSS 0.37% · top 70.2% CWE-269 · Improper privilege management
8.8CVSS 3.1 base score, v2 7.2
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
150Affected product versions listed by NVD
4References
7 Oct 2026Last modified by NVD

Description

A potential vulnerability in AMD System Management Mode (SMM) interrupt handler may allow an attacker with high privileges to access the SMM resulting in arbitrary code execution which could be used by malicious actors to bypass security mechanisms provided in the UEFI firmware.

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

Affected products

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

References

LinkTags
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1027
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1027
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2021-39301Hp z1 entry tower g5 workstation firmware improper privilege management vulnerabilityPotential vulnerabilities have been identified in UEFI firmware (BIOS) for some PC products which may allow escalation of privilege and arbitrary cod…EPSS 0.39%8.8CVE-2021-39299Hp elite dragonfly firmware improper privilege management vulnerabilityPotential vulnerabilities have been identified in UEFI firmware (BIOS) for some PC products which may allow escalation of privilege and arbitrary cod…EPSS 0.37%8.8CVE-2021-39300Hp z1 entry tower g5 workstation firmware improper privilege management vulnerabilityPotential vulnerabilities have been identified in UEFI firmware (BIOS) for some PC products which may allow escalation of privilege and arbitrary cod…EPSS 0.36%8.8CVE-2021-39297Hp 260 g3 desktop mini pc firmware improper privilege management vulnerabilityPotential vulnerabilities have been identified in UEFI firmware (BIOS) for some PC products which may allow escalation of privilege and arbitrary cod…EPSS 0.39%7.8CVE-2022-27540Hp elitebook 745 g4 firmware toctou race condition vulnerabilityA potential Time-of-Check to Time-of Use (TOCTOU) vulnerability has been identified in the HP BIOS for certain HP PC products, which might allow arbi…EPSS 0.12%7.8CVE-2022-31646Hp dragonfly folio g3 2-in-1 firmware incorrect authorization vulnerabilityPotential vulnerabilities have been identified in the system BIOS of certain HP PC products, which might allow arbitrary code execution, escalation o…EPSS 0.23%7.8CVE-2022-31644Hp dragonfly folio g3 2-in-1 firmware incorrect authorization vulnerabilityPotential vulnerabilities have been identified in the system BIOS of certain HP PC products, which might allow arbitrary code execution, escalation o…EPSS 0.23%7.8CVE-2022-31645Hp dragonfly folio g3 2-in-1 firmware race condition vulnerabilityPotential vulnerabilities have been identified in the system BIOS of certain HP PC products, which might allow arbitrary code execution, escalation o…EPSS 0.20%

Source: NIST National Vulnerability Database (record CVE-2021-39298), CISA KEV, FIRST EPSS (scores of 2026-10-18). This page is refreshed as NVD updates the record.