CVE-2024-8751Network attack vector

Service interruption via unauthenticated IP address change

Published Sep 12, 2024 · Updated Jul 24, 2026

Missing authentication in the SOPAS ET interface on affected industrial devices allows remote attackers to change the configured IP address. The interface accepts a network-configuration write for the address without authenticating the requester before performing the critical operation. Network reachability is sufficient, and changing the address can make the device unreachable and interrupt its service without disclosing application data.

CVSS severity7.5
High
EPSS probability0.93%
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 the SOPAS ET interface on affected industrial devices allows remote attackers to change the configured IP address. The interface accepts a network-configuration write for the address without authenticating the requester before performing the critical operation. Network reachability is sufficient, and changing the address can make the device unreachable and interrupt its service without disclosing application data.

The record

CVE
CVE-2024-8751
Published
Sep 12, 2024
Updated
Jul 24, 2026
Vendor
SICK AG
Product
MSC800 Firmware
Classifications
CWE-306, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.0 <=4.25
  2. Affected versionversion=1.0 <=s2.93.19

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SICK AG · MSC800 Firmwareversion=1.0 <=4.25; version=1.0 <=s2.93.19
Endress+Hauser · GMS800version=all versions
Endress+Hauser · MCS300Pversion=all versions
Endress+Hauser · GM32version=all versions
Endress+Hauser · MARSIC280version=all versions
Endress+Hauser · FLPS Multibarrierversion=all versions
Endress+Hauser · GMS800 FIDORversion=all versions
Endress+Hauser · MARSIC200version=all versions
Endress+Hauser · MARSIC300version=all versions
Endress+Hauser · VICOTEC320version=all versions
Endress+Hauser · MCS100FTversion=all versions
SICK AG · MSC800version=S1.0 <=<=S2.93.19; version=V1.0 <=<=V4.25
Endress+Hauser · MCU ETH-Service and Modbus-TCP Moduleversion=all versions
Endress+Hauser · MCS200HWversion=all versions
Endress+Hauser · MERCEM300Zversion=all versions
Endress+Hauser · SIPROCESSversion=all versions
Endress+Hauser · MES1B B&B Converterversion=all versions
Endress+Hauser · SAM800version=all versions

Published CVSS scores

7.5SICK AGCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1499Endpoint Denial of Service

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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