CVE-2026-28540 — MEDIUM (4.0)

Vulnerability Description

Out-of-bounds character read vulnerability in Bluetooth. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

CVSS Score

4.0

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Huawei	Harmonyos	5.1.0

Related Weaknesses (CWE)

CWE-158 CWE-125

References

https://consumer.huawei.com/en/support/bulletin/2026/3/Vendor Advisory
https://consumer.huawei.com/en/support/bulletinlaptops/2026/3/Vendor Advisory
https://consumer.huawei.com/en/support/bulletinvision/2026/3/Vendor Advisory
https://consumer.huawei.com/en/support/bulletinwearables/2026/3/Vendor Advisory

FAQ

What is CVE-2026-28540?

CVE-2026-28540 is a vulnerability with a CVSS score of 4.0 (MEDIUM). Out-of-bounds character read vulnerability in Bluetooth. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

How severe is CVE-2026-28540?

CVE-2026-28540 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-28540?

Check the references section above for vendor advisories and patch information. Affected products include: Huawei Harmonyos.