CVE-2023-28489Public exploitNetwork attack vector

Unauthenticated code execution via UPLOADFILENAME header injection

Published Apr 11, 2023 · Updated Feb 13, 2025

Command injection in Siemens SICAM A8000 CP-8031 and CP-8050 before CPCI85 V05 allows remote attackers to execute arbitrary code. The HTTPS service passes the attacker-controlled UPLOADFILENAME header from a crafted Toolbox II request to a system shell, allowing encoded commands to run as root. The request is reachable without authentication only when Remote Operation is enabled; that setting is disabled by default, and exploitation grants full device control.

CVSS severity9.8
Critical
EPSS probability2.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Siemens SICAM A8000 CP-8031 and CP-8050 before CPCI85 V05 allows remote attackers to execute arbitrary code. The HTTPS service passes the attacker-controlled UPLOADFILENAME header from a crafted Toolbox II request to a system shell, allowing encoded commands to run as root. The request is reachable without authentication only when Remote Operation is enabled; that setting is disabled by default, and exploitation grants full device control.

The record

CVE
CVE-2023-28489
Published
Apr 11, 2023
Updated
Feb 13, 2025
Vendor
Siemens
Product
SICAM A8000 CP-8050 Master Module
Classifications
CWE-77, T1190, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record 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=All versions < CPCI85 V05

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · SICAM A8000 CP-8050 Master Moduleversion=All versions < CPCI85 V05
Siemens · SICAM A8000 CP-8031 Master Moduleversion=All versions < CPCI85 V05

Published CVSS scores

9.8Siemens AGCVSS:3.1/AV:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1190Exploit Public-Facing Application
T1059.004Unix Shell

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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