What is CVE-2021-22419?

CVE-2021-22419 is a medium-severity vulnerability in Huawei Harmonyos, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.5/10. Published 2021-08-03.

How severe is CVE-2021-22419?

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

Vulnerability in Huawei Harmonyos

CVE-2021-22419

A component of the HarmonyOS has a Insufficient Verification of Data Authenticity vulnerability. Local attackers may exploit this vulnerability to cause persistent dos.

Published 2021-08-03 · last modified 2026-06-17.

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:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.001 (0.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

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

Affected products

Huawei Harmonyos — versions 2.0

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

device.harmonyos.com/cn/docs/security/update/oem_security_update_phone_202106-0… (Not Applicable, Vendor Advisory)

Frequently asked questions

What is CVE-2021-22419?: CVE-2021-22419 is a medium-severity vulnerability in Huawei Harmonyos, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.5/10. Published 2021-08-03.
How severe is CVE-2021-22419?: Medium severity. CVSS v3 base score is 5.5 out of 10.