CVE-2024-23767Public exploit

Network reconfiguration via unauthenticated HICP requests

Published Jun 26, 2024 · Updated Aug 1, 2024

Improper authentication in HMS Networks Anybus X-Gateway AB7832-F firmware 3.29.01 allows remote attackers to alter network settings. The UDP 3250 HICP service accepts valid configuration frames while authentication is disabled by default, including frames that set an attacker-chosen password. Network access to the device is sufficient; changing its addressing can interrupt industrial traffic, and setting a password can block legitimate reconfiguration.

CVSS severity6.5
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in HMS Networks Anybus X-Gateway AB7832-F firmware 3.29.01 allows remote attackers to alter network settings. The UDP 3250 HICP service accepts valid configuration frames while authentication is disabled by default, including frames that set an attacker-chosen password. Network access to the device is sufficient; changing its addressing can interrupt industrial traffic, and setting a password can block legitimate reconfiguration.

The record

CVE
CVE-2024-23767
Published
Jun 26, 2024
Updated
Aug 1, 2024
Vendor
HMS Networks
Product
Anybus X-gateway - EtherNet/IP Slave - PROFIBUS DP-V0 Slave
Classifications
CWE-287, T1565.001
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 26, 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=3.29.01

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

HMS Networks · Anybus X-gateway - EtherNet/IP Slave - PROFIBUS DP-V0 Slaveversion=3.29.01

Published CVSS scores

6.5HMS NetworksCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
8.8CISA-ADPCVSS: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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
T1565.001Stored Data Manipulation

Public exploit references

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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