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

EPSS: 0.001 (0.2th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

References

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.