What is CVE-2026-27781?

CVE-2026-27781 is a low-severity vulnerability in Openharmony, classified under Integer Overflow or Wraparound. CVSS score: 3.3/10. Published 2026-05-19.

How severe is CVE-2026-27781?

Low severity. CVSS v3 base score is 3.3 out of 10.

Integer overflow in Openharmony

CVE-2026-27781

in OpenHarmony v6.0 and prior versions allow a local attacker cause DOS.

Vulnerability class: Integer Overflow

EPSS: 0.000 (3.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Openharmony — versions v5.0.3

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

scy@openharmony.io

Frequently asked questions

What is CVE-2026-27781?: CVE-2026-27781 is a low-severity vulnerability in Openharmony, classified under Integer Overflow or Wraparound. CVSS score: 3.3/10. Published 2026-05-19.
How severe is CVE-2026-27781?: Low severity. CVSS v3 base score is 3.3 out of 10.