What’s Vulnerable › Vulnerabilities

CVE-2021-46840

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-10-14 · updated 2026-06-17
• Weakness: CWE-125

Description

The HW_KEYMASTER module has an out-of-bounds access vulnerability in parameter set verification.Successful exploitation of this vulnerability may cause malicious construction of data, which results in out-of-bounds access.

Affected products

• Huawei EMUI: 11.0.1, 12.0.0
• Huawei HarmonyOS: 2.0

References

• https://consumer.huawei.com/en/support/bulletin/2022/10/
• https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202210-0000001416095697
• https://consumer.huawei.com/en/support/bulletin/2022/10/
• https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202210-0000001416095697

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