CVE-2020-9143Network attack vector

Information disclosure via missing certificate authentication

Published Jan 13, 2021 · Updated Aug 4, 2024

Missing authentication in affected Huawei EMUI and Magic UI releases allows remote attackers to expose low-sensitivity information. Huawei labels the issue a certificate vulnerability but does not identify the affected component, certificate flow, or authentication check that incorrectly handles untrusted input. Network access without authentication is sufficient; the published impact is limited to disclosure of low-sensitivity information, with no integrity or availability effect reported.

CVSS severity5.3
Medium
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in affected Huawei EMUI and Magic UI releases allows remote attackers to expose low-sensitivity information. Huawei labels the issue a certificate vulnerability but does not identify the affected component, certificate flow, or authentication check that incorrectly handles untrusted input. Network access without authentication is sufficient; the published impact is limited to disclosure of low-sensitivity information, with no integrity or availability effect reported.

The record

CVE
CVE-2020-9143
Published
Jan 13, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-306
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 13, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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