CVE-2026-28539 Information disclosure in HarmonyOS

Medium 6.2 Published 5 Mar 2026 Updated 5 Mar 2026

A data processing flaw in HarmonyOS certificate management allows attackers to compromise service 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-2026-28539?

CVE-2026-28539 is a medium-severity 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

Data processing vulnerability in the certificate management module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

Weakness: CWE-19

Which versions are affected by CVE-2026-28539?

It affects 1 product.

Products include Huawei Harmonyos.

How do I fix CVE-2026-28539?

No fix has been published for CVE-2026-28539 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-28539 being exploited?

There is no known exploitation of CVE-2026-28539 in the wild and no public exploit code.

All Huawei Harmonyos vulnerabilities

Sources

Also known as GHSA-957j-qgmx-q66h.