Insyde InsydeH2O SMM privilege escalation

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 was found in Insyde InsydeH2O. It has been rated as problematic. This impacts an unknown function of the component SMM. This manipulation causes an unknown weakness. This vulnerability is tracked as CVE-2021-42060. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Insyde InsydeH2O (version unknown). It has been declared as problematic. Affected by this vulnerability is an unknown function of the component SMM. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in Insyde InsydeH2O Kernel 5.0 through 05.08.41, Kernel 5.1 through 05.16.41, Kernel 5.2 before 05.23.22, and Kernel 5.3 before 05.32.22. An Int15ServiceSmm SMM callout vulnerability allows an attacker to hijack execution flow of code running in System Management Mode. Exploiting this issue could lead to escalating privileges to SMM.

The weakness was disclosed 02/03/2022. The advisory is shared at insyde.com. This vulnerability is known as CVE-2021-42060 since 10/07/2021. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

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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: 🔍

Timelineinfo

10/07/2021 🔍
02/03/2022 +119 days 🔍
02/03/2022 +0 days 🔍
11/04/2025 +1370 days 🔍

Sourcesinfo

Advisory: insyde.com
Status: Confirmed

CVE: CVE-2021-42060 (🔍)
GCVE (CVE): GCVE-0-2021-42060
GCVE (VulDB): GCVE-100-192157

Entryinfo

Created: 02/03/2022 08:18
Updated: 11/04/2025 23:16
Changes: 02/03/2022 08:18 (35), 02/05/2022 07:29 (1), 11/04/2025 23:16 (35)
Complete: 🔍
Cache ID: 216::103

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