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CVE-2025-13406— Scanning for higher HART revision device leads into NULL pointer dereference in live list

Quick assessment

Affected
Softing smartLink SW-HT
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.

Softing smartLink SW-HT是Softing公司的一款 HART 多路复用器，无需额外硬件即可简单快速地访问 HART 现场设备。 Softing smartLink SW-HT 1.43版本存在安全漏洞，该漏洞源于空指针取消引用，可能导致HTTP拒绝服务攻击。

AI Predicted 5.3 Difficulty: Easy EPSS 0.32% · P22

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-13406

Vulnerability Information
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Vulnerability Title
Scanning for higher HART revision device leads into NULL pointer dereference in live list
Source: CVE Program / CVE List V5
Vulnerability Description
NULL Pointer Dereference vulnerability in Softing Industrial Automation GmbH smartLink SW-HT (Webserver modules) allows HTTP DoS.This issue affects smartLink SW-HT: 1.43.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/AU:Y/R:A/RE:L/U:Red
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Softing smartLink SW-HT 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Softing smartLink SW-HT是Softing公司的一款 HART 多路复用器，无需额外硬件即可简单快速地访问 HART 现场设备。 Softing smartLink SW-HT 1.43版本存在安全漏洞，该漏洞源于空指针取消引用，可能导致HTTP拒绝服务攻击。
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
Softing smartLink SW-HT 1.43 -

II. Public POCs for CVE-2025-13406

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III. Intelligence Information for CVE-2025-13406

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Vendor Advisories for CVE-2025-13406 (1)

Other References for CVE-2025-13406 (2)

IV. Related Vulnerabilities

Same product: smartLink SW-HT
Same vendor: Softing
Same weakness: CWE-476

V. Comments for CVE-2025-13406

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