CVE-2026-34859 Use after free in EMUI

Medium 5.9 Published 13 Apr 2026 Updated 13 Apr 2026

A use-after-free flaw in the Huawei kernel module allows attackers to compromise system availability and confidentiality.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-34859?

CVE-2026-34859 is a medium-severity use after free vulnerability in Huawei Emui, published on 13 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

UAF vulnerability in the kernel module. Impact: Successful exploitation of this vulnerability will affect availability and confidentiality.

Weakness: CWE-416

Which versions are affected by CVE-2026-34859?

It affects 2 products.

Products include Huawei Emui, Huawei Harmonyos.

How do I fix CVE-2026-34859?

No fix has been published for CVE-2026-34859 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2026-34859 being exploited?

There is no known exploitation of CVE-2026-34859 in the wild and no public exploit code.

All Huawei Emui vulnerabilities

Sources

Also known as GHSA-g9rm-h86m-2xrr.