CVE-2023-5102Network attack vector

Unauthenticated hidden-functionality access via HTTP requests

Published Oct 9, 2023 · Updated Dec 9, 2024

Insufficient control flow management in RDT400 on SICK APU0200 before 4.0.0.6 allows remote attackers to enable hidden functions via HTTP. SICK has not disclosed the request endpoint or the control-flow error that exposes the hidden functionality. No authentication or user interaction is required; the published impact is limited to reading information exposed by those functions.

CVSS severity5.3
Medium
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Insufficient control flow management in RDT400 on SICK APU0200 before 4.0.0.6 allows remote attackers to enable hidden functions via HTTP. SICK has not disclosed the request endpoint or the control-flow error that exposes the hidden functionality. No authentication or user interaction is required; the published impact is limited to reading information exposed by those functions.

The record

CVE
CVE-2023-5102
Published
Oct 9, 2023
Updated
Dec 9, 2024
Vendor
SICK AG
Product
SICK APU0200
Classifications
CWE-691, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 9, 2024Record 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=0 <*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SICK AG · SICK APU0200version=0 <*
SICK AG · APU0200version=all versions

Published CVSS scores

5.3SICK AGCVSS: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-691Insufficient Control Flow Management
T1190Exploit Public-Facing Application

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo