Huawei HarmonyOS HW_KEYMASTER out-of-bounds

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Huawei HarmonyOS. The affected element is an unknown function of the component HW_KEYMASTER Module. Performing a manipulation results in out-of-bounds. This vulnerability is known as CVE-2021-46867. No exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in Huawei HarmonyOS (affected version unknown). This affects an unknown functionality of the component HW_KEYMASTER Module. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. The summary by CVE is:

The HW_KEYMASTER module has a problem in releasing memory.Successful exploitation of this vulnerability may result in out-of-bounds memory access.

The weakness was published 01/06/2023. It is possible to read the advisory at consumer.huawei.com. This vulnerability is uniquely identified as CVE-2021-46867 since 12/28/2022. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/10/2025).

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

12/28/2022 🔍
01/06/2023 +9 days 🔍
01/06/2023 +0 days 🔍
04/10/2025 +825 days 🔍

Sourcesinfo

Vendor: huawei.com

Advisory: consumer.huawei.com
Status: Confirmed

CVE: CVE-2021-46867 (🔍)
GCVE (CVE): GCVE-0-2021-46867
GCVE (VulDB): GCVE-100-217575

Entryinfo

Created: 01/06/2023 23:45
Updated: 04/10/2025 16:29
Changes: 01/06/2023 23:45 (37), 01/29/2023 14:13 (11), 04/10/2025 16:29 (17)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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