CVE-2025-41704— Phoenix Contact: Unauthenticated Modbus Service DoS via Crafted Function Code
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I. Basic Information for CVE-2025-41704
Vulnerability Information
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Vulnerability Title
Phoenix Contact: Unauthenticated Modbus Service DoS via Crafted Function Code
Source: NVD (National Vulnerability Database)
Vulnerability Description
An unauthanticated remote attacker can perform a DoS of the Modbus service by sending a specific function and sub-function code without affecting the core functionality.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
Phoenix Contact多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Phoenix Contact QUINT4-UPS/24DC/24DC/10/EIP等都是德国菲尼克斯电气（Phoenix Contact）公司的一款工业级直流不间断电源模块。 Phoenix Contact多款产品存在安全漏洞，该漏洞源于未经身份验证的攻击者可发送特定功能和子功能代码，可能导致Modbus服务拒绝服务攻击。以下产品受到影响：QUINT4-UPS/24DC/24DC/5/EIP、QUINT4-UPS/24DC/24DC/10/EIP和QUINT4-UPS/24DC/24DC/20/EIP
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 | QUINT4-UPS/24DC/24DC/5/EIP | VC:00 ~ VC:07 | - | |
| Phoenix Contact | QUINT4-UPS/24DC/24DC/10/EIP | VC:00 ~ VC:07 | - | |
| Phoenix Contact | QUINT4-UPS/24DC/24DC/20/EIP | VC:00 ~ VC:07 | - | |
| Phoenix Contact | QUINT4-UPS/24DC/24DC/40/EIP | VC:00 ~ VC:07 | - |
II. Public POCs for CVE-2025-41704
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Same Patch Batch · Phoenix Contact · 2025-10-14 · 6 CVEs total
| CVE-2025-41699 | 8.8 HIGH | Phoenix Contact: Security Advisory for CHARX SEC-3xxx charging controllers |
| CVE-2025-41703 | 7.5 HIGH | Phoenix Contact: UPS Shutdown via Unauthenticated Modbus Command |
| CVE-2025-41705 | 6.8 MEDIUM | Phoenix Contact: WebSocket Message Interception Leaks Webfrontend Credentials |
| CVE-2025-41706 | 5.3 MEDIUM | Phoenix Contact: Webserver Denial of Service through Malformed Content-Length |
| CVE-2025-41707 | 5.3 MEDIUM | Phoenix Contact: WebSocket Handler Denial of Service |
IV. Related Vulnerabilities
Same product: QUINT4-UPS/24DC/24DC/5/EIP
Same vendor: Phoenix Contact
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Stack-Based Buffer Overflow in CLI Login Username Handling o - CVE-2026-22320
Stack-Based Buffer Overflow in TFTP File-Transfer Command Ha
Same weakness: CWE-770
- CVE-2026-42294
Argo Workflows: Unauthenticated Memory Exhaustion (DoS) in W - CVE-2026-42189
Russh: Pre-auth DoS via unbounded allocation in keyboard-int - CVE-2026-42793
Atom table exhaustion via attacker-controlled GraphQL SDL na - CVE-2026-44499
ZEBRA: Permanent Block Discovery Halt via Gossip Queue Satur - CVE-2026-44500
ZEBRA: Allocation Amplification in Inbound Network Deseriali
V. Comments for CVE-2025-41704
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