CVE-2021-22480

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: 2022-02-25 · updated 2026-06-17
Weakness: CWE-190

Description

The interface of a certain HarmonyOS module has an integer overflow vulnerability. Successful exploitation of this vulnerability may lead to heap memory overflow.

Affected products

Huawei HarmonyOS: before 2.0 — fixed in 2.0

How to fix

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

References

https://device.harmonyos.com/en/docs/security/update/security-bulletins-202109-0000001196270727
https://device.harmonyos.com/en/docs/security/update/security-bulletins-202109-0000001196270727

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