CVE-2026-28536 Auth bypass in HarmonyOS

Critical 9.6 Published 5 Mar 2026 Updated 5 Mar 2026

Attackers can bypass device authentication in HarmonyOS, compromising data integrity 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-2026-28536?

CVE-2026-28536 is a critical authentication bypass vulnerability in Huawei Harmonyos, published on 5 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Authentication bypass vulnerability in the device authentication module. Impact: Successful exploitation of this vulnerability will affect integrity and confidentiality.

Weakness: CWE-305

Which versions are affected by CVE-2026-28536?

It affects 1 product.

Products include Huawei Harmonyos.

How do I fix CVE-2026-28536?

No fix has been published for CVE-2026-28536 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-28536 being exploited?

There is no known exploitation of CVE-2026-28536 in the wild and no public exploit code.

All Huawei Harmonyos vulnerabilities

Sources

Also known as GHSA-2fv9-x5cx-m494.