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

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2021-4212

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
22/04/2022
Last modified:
11/05/2022

Description

A potential vulnerability in the SMI callback function used in the Legacy BIOS mode driver in some Lenovo Notebook models may allow an attacker with local access and elevated privileges to execute arbitrary code.

Impact

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

Base Score: 6.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
6.70
Severity 3.x
MEDIUM
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:lenovo:c340-14iml_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:c340-14iml:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:c340-15iml_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:c340-15iml:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:d330-10igm_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:d330-10igm:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:duet_3-10igl5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:duet_3-10igl5:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:e41-50_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:e41-50:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:flex-14iml_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:flex-14iml:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:flex-15iml_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:flex-15iml:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_3-14are05_firmware:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools