Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-39298

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
16/02/2022
Last modified:
24/02/2026

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.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.80
Severity 3.x
HIGH
Vector 2.0
AV:L/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
7.20
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:hp:z1_entry_tower_g5_workstation_firmware:*:*:*:*:*:*:*:* 02.12.00 (excluding)
cpe:2.3:h:hp:z1_entry_tower_g5_workstation:-:*:*:*:*:*:*:*
cpe:2.3:o:hp:z1_entry_tower_g6_workstation_firmware:*:*:*:*:*:*:*:* 02.10.00 (excluding)
cpe:2.3:h:hp:z1_entry_tower_g6_workstation:-:*:*:*:*:*:*:*
cpe:2.3:o:hp:z1_g8_tower_desktop_pc_firmware:*:*:*:*:*:*:*:* 02.07.00 (excluding)
cpe:2.3:h:hp:z1_g8_tower_desktop_pc:-:*:*:*:*:*:*:*
cpe:2.3:o:hp:z4_g4_workstation_\(core-x\)_firmware:*:*:*:*:*:linux_kernel:*:* 02.75 (excluding)
cpe:2.3:o:hp:z4_g4_workstation_\(core-x\)_firmware:*:*:*:*:*:windows_10:*:* 02.75 (excluding)
cpe:2.3:o:hp:z4_g4_workstation_\(core-x\)_firmware:*:*:*:*:*:windows_7:*:* 02.75 (excluding)
cpe:2.3:h:hp:z4_g4_workstation_\(core-x\):-:*:*:*:*:*:*:*
cpe:2.3:o:hp:z4_g4_workstation_\(xeon_w\)_firmware:*:*:*:*:*:linux_kernel:*:* 02.75 (excluding)
cpe:2.3:o:hp:z4_g4_workstation_\(xeon_w\)_firmware:*:*:*:*:*:windows_10:*:* 02.75 (excluding)
cpe:2.3:o:hp:z4_g4_workstation_\(xeon_w\)_firmware:*:*:*:*:*:windows_7:*:* 02.75 (excluding)
cpe:2.3:h:hp:z4_g4_workstation_\(xeon_w\):-:*:*:*:*:*:*:*
cpe:2.3:o:hp:z6_g4_workstation_firmware:*:*:*:*:*:linux_kernel:*:* 02.75 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools