CVE-2017-8142

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-11-22 · updated 2026-06-17
Weakness: CWE-416

Description

The Trusted Execution Environment (TEE) module driver of Mate 9 and Mate 9 Pro smart phones with software versions earlier than MHA-AL00BC00B221 and versions earlier than LON-AL00BC00B221 has a use after free (UAF) vulnerability. An attacker tricks a user into installing a malicious application, and the application can start multiple threads and try to create and free specific memory, which could triggers access memory after free it and causes a system crash or arbitrary code execution.

Affected products

Huawei Technologies Co., Ltd. Mate 9: before mha-al00bc00b221 — fixed in mha-al00bc00b221
Huawei Technologies Co., Ltd. Mate 9 Pro: before lon-al00bc00b221 — fixed in lon-al00bc00b221

How to fix

Upgrade to a fixed version: Huawei Technologies Co., Ltd. Mate 9 mha-al00bc00b221; Huawei Technologies Co., Ltd. Mate 9 Pro lon-al00bc00b221. Check the vendor advisory for mitigations.

References

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