Lenovo Notebook Legacy BIOS Mode Driver input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Lenovo Notebook. This vulnerability affects unknown code of the component Legacy BIOS Mode Driver. The manipulation results in input validation. This vulnerability is reported as CVE-2021-4212. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in Lenovo Notebook (the affected version unknown). Affected is an unknown part of the component Legacy BIOS Mode Driver. 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 disclosed 04/23/2022. The advisory is shared for download at support.lenovo.com. This vulnerability is traded as CVE-2021-4212 since 01/24/2022. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 6.7

VulDB Base Score: 6.7
VulDB Temp Score: 6.7
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/24/2022 🔍
04/23/2022 +88 days 🔍
04/23/2022 +0 days 🔍
04/29/2022 +6 days 🔍

Sourcesinfo

Vendor: lenovo.com

Advisory: support.lenovo.com
Status: Confirmed

CVE: CVE-2021-4212 (🔍)
GCVE (CVE): GCVE-0-2021-4212
GCVE (VulDB): GCVE-100-198432

Entryinfo

Created: 04/23/2022 09:03
Updated: 04/29/2022 08:53
Changes: 04/23/2022 09:03 (45), 04/29/2022 08:53 (1)
Complete: 🔍
Cache ID: 216::103

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