CVE-2021-26943 - Vulnerability Details - OpenCVE

Description

The UX360CA BIOS through 303 on ASUS laptops allow an attacker (with the ring 0 privilege) to overwrite nearly arbitrary physical memory locations, including SMRAM, and execute arbitrary code in the SMM (issue 3 of 3).

Published: 2021-03-31

Score: 8.2 High

EPSS: 4.7% Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

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:asus:ux360ca_bios:*:*:*:*:*:*:*:*

cpe:2.3:h:asus:ux360ca:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-13725	The UX360CA BIOS through 303 on ASUS laptops allow an attacker (with the ring 0 privilege) to overwrite nearly arbitrary physical memory locations, including SMRAM, and execute arbitrary code in the SMM (issue 3 of 3).

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.04688.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://www.asus.com/support/FAQ/1045541/
https://www.youtube.com/watch?v=1H3AfaVyeuk

History

No history.

Subscriptions

Asus Ux360ca Ux360ca Bios

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-03-31T19:26:31.000Z

Updated: 2024-08-03T20:33:41.499Z

Reserved: 2021-02-09T00:00:00.000Z

Link: CVE-2021-26943

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-03-31T20:15:14.130

Modified: 2024-11-21T05:57:05.773

Link: CVE-2021-26943

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

NVD-CWE-noinfo

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