CVE-2023-26549 Denial of service in EMUI

High 7.5 Published 27 Mar 2023 Updated 19 Feb 2025

Attackers can cause repeated app restarts in Huawei SystemUI, leading to denial of service and potential confidentiality loss.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-26549?

CVE-2023-26549 is a high-severity denial of service vulnerability in Huawei Emui, published on 27 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The SystemUI module has a vulnerability of repeated app restart due to improper parameters. Successful exploitation of this vulnerability may affect confidentiality.

Weakness: CWE-233

Which versions are affected by CVE-2023-26549?

It affects 2 products.

Products include Huawei Emui, Huawei Harmonyos.

How do I fix CVE-2023-26549?

No fix has been published for CVE-2023-26549 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-26549 being exploited?

There is no known exploitation of CVE-2023-26549 in the wild and no public exploit code.

All Huawei Emui vulnerabilities

Sources

Also known as GHSA-6738-85h4-qhxj.