Lenovo Notebook LenovoVariable SMI input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Lenovo Notebook. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component LenovoVariable SMI Handler. Performing a manipulation results in input validation. This vulnerability is cataloged as CVE-2021-3970. The attack must be initiated from a local position. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Lenovo Notebook (version unknown). It has been classified as critical. This affects an unknown function of the component LenovoVariable SMI Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 04/23/2022. The advisory is shared at support.lenovo.com. This vulnerability is uniquely identified as CVE-2021-3970 since 11/17/2021. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 6.7
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.7
CNA Vector (Lenovo Group Ltd.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/17/2021 🔍
04/23/2022 +156 days 🔍
04/23/2022 +0 days 🔍
05/08/2026 +1476 days 🔍

Sourcesinfo

Vendor: lenovo.com

Advisory: support.lenovo.com
Status: Confirmed

CVE: CVE-2021-3970 (🔍)
GCVE (CVE): GCVE-0-2021-3970
GCVE (VulDB): GCVE-100-198429

Entryinfo

Created: 04/23/2022 09:00
Updated: 05/08/2026 10:50
Changes: 04/23/2022 09:00 (45), 04/29/2022 08:42 (1), 05/08/2026 10:47 (1), 05/08/2026 10:50 (18)
Complete: 🔍
Committer: lywand
Cache ID: 216::103

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