Buffer overflow in Openharmony

CVE-2026-25781

in OpenHarmony v6.0 and prior versions allow a local attacker cause DOS and it cannot be recovered.

Vulnerability class: Buffer Overflow

EPSS: 0.000 (2.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N.

Affected products

Openharmony — versions v5.0.3

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

scy@openharmony.io

Frequently asked questions

What is CVE-2026-25781?: CVE-2026-25781 is a high-severity vulnerability in Openharmony, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-05-19.
How severe is CVE-2026-25781?: High severity. CVSS v3 base score is 8.4 out of 10.