What’s Vulnerable › Vulnerabilities

CVE-2021-37049

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-08 · updated 2026-06-17
• Weakness: CWE-787

Description

There is a Heap-based buffer overflow vulnerability in Huawei Smartphone.Successful exploitation of this vulnerability may rewrite the memory of adjacent objects.

Affected products

• Huawei EMUI: 10.1.1, 11.0.0
• Huawei HarmonyOS: before 2.0 — fixed in 2.0
• Huawei Magic UI: 3.1.1, 4.0.0

How to fix

Upgrade to a fixed version: Huawei HarmonyOS 2.0. Check the vendor advisory for mitigations.

References

• https://consumer.huawei.com/en/support/bulletin/2021/9/
• https://device.harmonyos.com/en/docs/security/update/security-bulletins-202109-0000001196270727
• https://consumer.huawei.com/en/support/bulletin/2021/9/
• https://device.harmonyos.com/en/docs/security/update/security-bulletins-202109-0000001196270727

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