What’s Vulnerable › Vulnerabilities

CVE-2021-40040

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-10 · updated 2026-06-17

Description

Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module. Successful exploitation of this vulnerability may affect confidentiality.

Affected products

• Huawei EMUI: 10.0.0, 10.1.0, 10.1.1, 11.0.0
• Huawei HarmonyOS: 2.0
• Huawei Magic UI: 3.0.0, 3.1.0, 3.1.1, 4.0.0

References

• https://consumer.huawei.com/en/support/bulletin/2022/8/
• https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202209-0000001392278845
• https://consumer.huawei.com/en/support/bulletin/2022/8/
• https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202209-0000001392278845

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