What’s Vulnerable › Vulnerabilities

CVE-2021-37040

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% 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-88

Description

There is a Parameter injection vulnerability in Huawei Smartphone.Successful exploitation of this vulnerability may cause privilege escalation of files after CIFS share mounting.

Affected products

• Huawei EMUI: 11.0.0
• Huawei HarmonyOS: before 2.0 — fixed in 2.0
• Huawei Magic UI: 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

Get alerted when CVE-2021-37040 or the next vulnerability affects your stack