CVE-2026-28540 Information disclosure in HarmonyOS
An out-of-bounds read in Bluetooth allows attackers to access sensitive service data, impacting confidentiality on HarmonyOS devices.
- 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-2026-28540?
CVE-2026-28540 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
Out-of-bounds character read vulnerability in Bluetooth. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
Which versions are affected by CVE-2026-28540?
It affects 1 product.
Products include Huawei Harmonyos.
How do I fix CVE-2026-28540?
No fix has been published for CVE-2026-28540 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-28540 being exploited?
There is no known exploitation of CVE-2026-28540 in the wild and no public exploit code.
Other vulnerabilities in Huawei Harmonyos
Sources
Also known as GHSA-mm89-xrm2-4q7g.