Use After Free in Huawei Harmonyos

CVE-2026-49306

UAF vulnerability in the time and time zone module. Impact: Successful exploitation of this vulnerability may affect availability.

Vulnerability class: Use-After-Free

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.001 (1.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.3% 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-2026-49306: held from 0.001 to 0.001.

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

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-49306?
CVE-2026-49306 is a low-severity vulnerability in Huawei Harmonyos, classified under Use After Free. CVSS score: 3.3/10. Published 2026-08-17.
How severe is CVE-2026-49306?
Low severity. CVSS v3 base score is 3.3 out of 10.