What is CVE-2021-33658?

CVE-2021-33658 is a high-severity vulnerability in Huawei Atune, classified under Missing Authentication for Critical Function. CVSS score: 7.8/10. Published 2022-03-11.

How severe is CVE-2021-33658?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2021-33658 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Huawei Atune

CVE-2021-33658

atune before 0.3-0.8 log in as a local user and run the curl command to access the local atune url interface to escalate the local privilege or modify any file. Authentication is not forcibly enabled in the default configuration.

Vulnerability class: Broken Authentication

Published 2022-03-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (4.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

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

Affected products

Huawei Atune
Openatom Openeuler — versions 20.03
Openeuler Atune — versions 0.3-0.8

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

www.openeuler.org/zh/security/safety-bulletin/detail.html (Vendor Advisory)

Frequently asked questions

What is CVE-2021-33658?: CVE-2021-33658 is a high-severity vulnerability in Huawei Atune, classified under Missing Authentication for Critical Function. CVSS score: 7.8/10. Published 2022-03-11.
How severe is CVE-2021-33658?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-33658 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.