What is CVE-2026-27766?

CVE-2026-27766 is a medium-severity vulnerability in Openharmony, classified under Signal Handler Race Condition. CVSS score: 5.5/10. Published 2026-05-19.

How severe is CVE-2026-27766?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Openharmony

CVE-2026-27766

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

EPSS: 0.000 (2.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Openharmony — versions v5.0.3

Weakness classification (CWE)

CWE-364 — Signal Handler Race Condition

References

scy@openharmony.io

Frequently asked questions

What is CVE-2026-27766?: CVE-2026-27766 is a medium-severity vulnerability in Openharmony, classified under Signal Handler Race Condition. CVSS score: 5.5/10. Published 2026-05-19.
How severe is CVE-2026-27766?: Medium severity. CVSS v3 base score is 5.5 out of 10.