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

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.002 (3.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-25781: held from 0.001 to 0.002.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

References

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.