CVE-2020-5955

View on CVE.org

Published Nov 3, 2021 CVSS 3.1 · 9.8 Critical EPSS 1.4% KEV · Not listed

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:ice_lake:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:tiger_lake:-:*:*:*:*:*:*:*

Configuration 3 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:whitley-sp:-:*:*:*:*:*:*:*

Configuration 4 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:grantley-ep:-:*:*:*:*:*:*:*

Configuration 5 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:elkhart_lake:-:*:*:*:*:*:*:*

Configuration 6 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:purley-ep_refresh_neon_city:-:*:*:*:*:*:*:*

Configuration 7 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:comet_lake_rvp:-:*:*:*:embedded:*:*:*

Configuration 8 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:comet_lake_rvp:-:*:*:*:server:*:*:*

Configuration 9 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:comet_lake:-:*:*:*:client:*:*:*

Configuration 10 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:whiskey_lake_rvp:-:*:*:*:embedded:*:*:*

Configuration 11 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:whiskey_lake_rvp:-:*:*:*:server:*:*:*

Configuration 12 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:whiskey_lake:-:*:*:*:client:*:*:*

Configuration 13 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:mehlow:-:*:*:*:embedded:*:*:*

Configuration 14 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:mehlow-r:-:*:*:*:embedded:*:*:*

Configuration 15 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:mehlow-r:-:*:*:*:server:*:*:*

Configuration 16 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:mehlow:-:*:*:*:server:*:*:*

Configuration 17 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:coffee_lake:-:*:*:*:client:*:*:*

Configuration 18 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:cannon_lake:-:*:*:*:*:*:*:*

Configuration 19 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:kaby_lake_mrd:-:*:*:*:*:*:*:*

Configuration 20 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:greenlow:-:*:*:*:embedded:*:*:*

Configuration 21 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:greenlow-r:-:*:*:*:*:*:*:*

Configuration 22 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:greenlow:-:*:*:*:server:*:*:*

Configuration 23 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:greenlow-r:-:*:*:*:embedded:*:*:*

Configuration 24 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:kaby_lake:-:*:*:*:client:*:*:*

Configuration 25 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:skylake_mrd:-:*:*:*:*:*:*:*

Configuration 26 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:skylake:-:*:*:*:*:*:*:*

Configuration 27 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:coffee_lake:-:*:*:*:*:*:*:*

Configuration 28 [-]

AND

cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:intel:whiskey_lake:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2020-27109	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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 1.4% (1.413% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://security.netapp.com/advisory/ntap-20220223-0003/
https://www.insyde.com/products
https://www.insyde.com/security-pledge/SA-2021002

History

No history.

Subscriptions

Insyde Insydeh2o Uefi Bios

Intel Cannon Lake Coffee Lake Comet Lake Comet Lake Rvp Elkhart Lake Grantley-ep Greenlow Greenlow-r Ice Lake Kaby Lake Kaby Lake Mrd Mehlow Mehlow-r Purley-ep Refresh Neon City Skylake Skylake Mrd Tiger Lake Whiskey Lake Whiskey Lake Rvp Whitley-sp

Weaknesses

NVD-CWE-noinfo

Sources

CVE record Updated: Aug 4, 2024, 8:47 AM

Status: PUBLISHED
Assigner: mitre
Published: Nov 3, 2021, 12:19 AM
Updated: Aug 4, 2024, 8:47 AM
Reserved: Jan 6, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:22 AM

Status: Modified
Published: Nov 3, 2021, 1:15 AM
Modified: Jun 17, 2026, 3:22 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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