CVE-2023-47867

Device compromise via exposed Wi-Fi web services

Published Feb 1, 2024 · Updated Aug 2, 2024

Improper access control in MachineSense FeverWarn allows physically proximate attackers to compromise devices through exposed web services. The device operates as a Wi-Fi host and exposes its web services to clients within range without enforcing adequate access restrictions. Reachability requires proximity within Wi-Fi range; public sources do not disclose the specific web endpoint, operation, or resulting attacker actions.

CVSS severity8.8
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in MachineSense FeverWarn allows physically proximate attackers to compromise devices through exposed web services. The device operates as a Wi-Fi host and exposes its web services to clients within range without enforcing adequate access restrictions. Reachability requires proximity within Wi-Fi range; public sources do not disclose the specific web endpoint, operation, or resulting attacker actions.

The record

CVE
CVE-2023-47867
Published
Feb 1, 2024
Updated
Aug 2, 2024
Vendor
MachineSense
Product
FeverWarn
Classifications
CWE-284
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=DataHub RaspberryPi
  2. Affected versionversion=ESP32
  3. Affected versionversion=RaspberryPi

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

MachineSense · FeverWarnversion=DataHub RaspberryPi; version=ESP32; version=RaspberryPi

Published CVSS scores

8.8ICS-CERTCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control

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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