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CVE-2025-24003— MQTT OOB Write Vulnerability in EichrechtAgents of German EV Charging Stations

Quick assessment

Affected
Phoenix Contact CHARX SEC-3150
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PHOENIX CONTACT CHARX SEC-3000等都是德国菲尼克斯电气（PHOENIX CONTACT）公司的产品。PHOENIX CONTACT CHARX SEC-3000是一个 AC 充电控制器。PHOENIX CONTACT CHARX SEC-3050是一个 AC 充电控制器。PHOENIX CONTACT CHARX SEC-3100是一个 AC 充电控制器。 PHOENIX CONTACT CHARX SEC-3xxx存在安全漏洞，该漏洞源于未经身份验证的远程攻击者可使用MQTT

CVSS 8.2 · High EPSS 0.37% · P29

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-24003

Vulnerability Information
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Vulnerability Title
MQTT OOB Write Vulnerability in EichrechtAgents of German EV Charging Stations
Source: CVE Program / CVE List V5
Vulnerability Description
An unauthenticated remote attacker can use MQTT messages to trigger out-of-bounds writes in charging stations complying with German Calibration Law, resulting in a loss of integrity for only EichrechtAgents and potential denial-of-service for these stations.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
PHOENIX CONTACT CHARX SEC-3xxx 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PHOENIX CONTACT CHARX SEC-3000等都是德国菲尼克斯电气（PHOENIX CONTACT）公司的产品。PHOENIX CONTACT CHARX SEC-3000是一个 AC 充电控制器。PHOENIX CONTACT CHARX SEC-3050是一个 AC 充电控制器。PHOENIX CONTACT CHARX SEC-3100是一个 AC 充电控制器。 PHOENIX CONTACT CHARX SEC-3xxx存在安全漏洞，该漏洞源于未经身份验证的远程攻击者可使用MQTT
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Phoenix Contact CHARX SEC-3150 0.0.0 ~ 1.6.5 -
Phoenix Contact CHARX SEC-3100 0.0.0 ~ 1.6.5 -
Phoenix Contact CHARX SEC-3050 0.0.0 ~ 1.6.5 -
Phoenix Contact CHARX SEC-3000 0.0.0 ~ 1.6.5 -

II. Public POCs for CVE-2025-24003

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2025-24003

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Vendor Advisories for CVE-2025-24003 (1)

Same Patch Batch · Phoenix Contact · 2025-07-08 · 13 CVEs total

CVE-2025-25270 9.8 CRITICAL Remote Code Execution via Unauthenticated Configuration Manipulation
CVE-2025-41666 8.8 HIGH Phoenix Contact: File access due to the replacement of a critical file used by the watchdo
CVE-2025-41667 8.8 HIGH Phoenix Contact: File access due to the replacement of a critical file used by the arp-pre
CVE-2025-41668 8.8 HIGH Phoenix Contact: File access due to the replacement of a critical file used by the service
CVE-2025-25271 8.8 HIGH OCPP Backend Configuration via Insecure Defaults
CVE-2025-25268 8.8 HIGH Unauthenticated Configuration Access via Exposed API Endpoint
CVE-2025-25269 8.4 HIGH Local Privilege Escalation via Unauthenticated Command Injection
CVE-2025-24005 7.8 HIGH Local Privilege Escalation via Vulnerable SSH Script
CVE-2025-24006 7.8 HIGH Privilege Escalation via Insecure SSH Permissions
CVE-2025-41665 6.5 MEDIUM Phoenix Contact: DoS of the PLC due to incorrect default permissions possible
CVE-2025-24002 5.3 MEDIUM MQTT DoS Vulnerability in German EV Charging Stations
CVE-2025-24004 5.2 MEDIUM USB-C Buffer Overflow via Display Interface in EV Charging Stations

IV. Related Vulnerabilities

Same product: CHARX SEC-3150
Same vendor: Phoenix Contact
Same weakness: CWE-120

V. Comments for CVE-2025-24003

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