Insyde InsydeH2O prior 05.51.45 SMM UsbCoreDxe privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Insyde InsydeH2O. Affected by this vulnerability is the function UsbCoreDxe of the component SMM. The manipulation leads to an unknown weakness. This vulnerability is uniquely identified as CVE-2021-43323. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Insyde InsydeH2O and classified as problematic. This issue affects the function UsbCoreDxe of the component SMM. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 02/03/2022. The advisory is shared at insyde.com. The identification of this vulnerability is CVE-2021-43323 since 11/03/2021. Technical details are known, but no exploit is available.

Upgrading to version 05.08.45, 05.16.45, 05.26.45, 05.35.45, 05.43.45 or 05.51.45 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.2
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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: 🔍

Upgrade: InsydeH2O 05.08.45/05.16.45/05.26.45/05.35.45/05.43.45/05.51.45

Timelineinfo

11/03/2021 🔍
02/03/2022 +92 days 🔍
02/03/2022 +0 days 🔍
11/04/2025 +1370 days 🔍

Sourcesinfo

Advisory: insyde.com
Status: Confirmed

CVE: CVE-2021-43323 (🔍)
GCVE (CVE): GCVE-0-2021-43323
GCVE (VulDB): GCVE-100-192137

Entryinfo

Created: 02/03/2022 07:52
Updated: 11/04/2025 23:16
Changes: 02/03/2022 07:52 (37), 02/04/2022 17:52 (1), 11/04/2025 23:16 (34)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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