What’s Vulnerable › Vulnerabilities

CVE-2021-40017

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-09-16 · updated 2026-06-17
• Weakness: CWE-20

Description

The HW_KEYMASTER module lacks the validity check of the key format. Successful exploitation of this vulnerability may result in out-of-bounds memory 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-202209-0000001392278845
• https://consumer.huawei.com/en/support/bulletin/2022/10/
• https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202209-0000001392278845

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