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

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CVE-2020-5955

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
03/11/2021
Last modified:
12/07/2022

Description

An issue was discovered in Int15MicrocodeSmm in Insyde InsydeH2O before 2021-10-14 on Intel client chipsets. A caller may be able to escalate privileges.

Impact

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

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
9.80
Severity 3.x
CRITICAL
Vector 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

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

Base Score 2.0
7.50
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:* 05.32.30.0001 (excluding)
cpe:2.3:h:intel:ice_lake:-:*:*:*:*:*:*:*
cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:* 05.41.35.0001 (excluding)
cpe:2.3:h:intel:tiger_lake:-:*:*:*:*:*:*:*
cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:* 05.42.11.0026 (excluding)
cpe:2.3:h:intel:whitley-sp:-:*:*:*:*:*:*:*
cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:* 05.04.21.0068 (excluding)
cpe:2.3:h:intel:grantley-ep:-:*:*:*:*:*:*:*
cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:* 05.42.09.0003 (excluding)
cpe:2.3:h:intel:elkhart_lake:-:*:*:*:*:*:*:*
cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:* 05.21.51.0040 (excluding)
cpe:2.3:h:intel:purley-ep_refresh_neon_city:-:*:*:*:*:*:*:*
cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:* 05.34.09.0030 (excluding)
cpe:2.3:h:intel:comet_lake_rvp:-:*:*:*:embedded:*:*:*
cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:* 05.34.09.0030 (excluding)

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


References to Advisories, Solutions, and Tools