CVE-2021-39996

CRITICAL

HarmonyOS < 2.0 - Heap-based Buffer Overflow in NFC Module

Title source: llm

Description

There is a Heap-based buffer overflow vulnerability with the NFC module in smartphones. Successful exploitation of this vulnerability may cause memory overflow.

References (2)

Core 2

Core References

Vendor Advisory x_refsource_misc

https://device.harmonyos.com/en/docs/security/update/security-bulletins-202112-0000001183296718

Vendor Advisory x_refsource_misc

https://consumer.huawei.com/en/support/bulletin/2021/12/

Scores

CVSS v3 9.8

EPSS 0.0024

EPSS Percentile 46.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-787

Status published

Products (10)

huawei/emui 10.0.0

huawei/emui 10.1.0

huawei/emui 10.1.1

huawei/emui 11.0.0

huawei/emui 11.0.1

huawei/harmonyos < 2.0

huawei/magic_ui 3.0.0

huawei/magic_ui 3.1.0

huawei/magic_ui 3.1.1

huawei/magic_ui 4.0.0

Published Jan 10, 2022

Tracked Since Feb 18, 2026