Out-of-bounds Read in Huawei Harmonyos
CVE-2026-28540
Out-of-bounds character read vulnerability in Bluetooth. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.001 (1.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Huawei Harmonyos — versions 6.0.0, 5.1.0
Weakness classification (CWE)
References
- consumer.huawei.com/en/support/bulletin/2026/3/ (Vendor Advisory)
- consumer.huawei.com/en/support/bulletinvision/2026/3/ (Vendor Advisory)
- consumer.huawei.com/en/support/bulletinwearables/2026/3/ (Vendor Advisory)
- consumer.huawei.com/en/support/bulletinlaptops/2026/3/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-28540?
- CVE-2026-28540 is a medium-severity vulnerability in Huawei Harmonyos, classified under CWE-158. CVSS score: 4.0/10. Published 2026-03-05.
- How severe is CVE-2026-28540?
- Medium severity. CVSS v3 base score is 4.0 out of 10.