CVE-2024-4063Network attack vector

Unauthenticated data disclosure via improper certificate validation

Published Apr 23, 2024 · Updated Aug 1, 2024

Improper certificate validation in the Davinci Application of EZVIZ CS-C6-21WFR-8 5.2.7 Build 170628 allows remote attackers to read data. The public advisory does not identify the certificate-handling locus or the validation step performed incorrectly. Exploitation requires a high-complexity network attack without authentication and is limited to data disclosure, with no reported modification or service interruption.

CVSS severity3.7
Low
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in the Davinci Application of EZVIZ CS-C6-21WFR-8 5.2.7 Build 170628 allows remote attackers to read data. The public advisory does not identify the certificate-handling locus or the validation step performed incorrectly. Exploitation requires a high-complexity network attack without authentication and is limited to data disclosure, with no reported modification or service interruption.

The record

CVE
CVE-2024-4063
Published
Apr 23, 2024
Updated
Aug 1, 2024
Vendor
Hangzhou EZVIZ Network Co., Ltd.
Product
EZVIZ C6 (CS-C6-21WFR-8)
Classifications
CWE-295, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.2.7
  2. Affected versionversion=5.2.7 Build 170628

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hangzhou EZVIZ Network Co., Ltd. · EZVIZ C6 (CS-C6-21WFR-8)version=5.2.7; version=5.2.7 Build 170628

Published CVSS scores

3.7VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
2.6VulDBAV:N/AC:H/Au:N/C:P/I:N/A:N
3.7VulDBCVSS:3.0/AV:N/AC:H/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-295Improper Certificate Validation
T1557Adversary-in-the-Middle

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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