Out-of-bounds Read in Huawei Harmonyos
CVE-2026-24921
Address read vulnerability in the HDC module. Impact: Successful exploitation of this vulnerability will affect availability and confidentiality.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:H.
EPSS exploit prediction
EPSS: 0.001 (0.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 0th percentile — 0.2% 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
Weakness classification (CWE)
References
- consumer.huawei.com/en/support/bulletin/2026/2/ (Vendor Advisory)
- consumer.huawei.com/en/support/bulletinlaptops/2026/2/ (Vendor Advisory)
- consumer.huawei.com/en/support/bulletinwearables/2026/2/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-24921?
- CVE-2026-24921 is a medium-severity vulnerability in Huawei Harmonyos, classified under Out-of-bounds Read. CVSS score: 4.8/10. Published 2026-02-06.
- How severe is CVE-2026-24921?
- Medium severity. CVSS v3 base score is 4.8 out of 10.