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CVE-2025-59484— AutomationDirect CLICK PLUS Use of a Broken or Risky Cryptographic Algorithm

Quick assessment

Affected
AutomationDirect CLICK PLUS C0-0x CPU firmware
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.

AutomationDirect CLICK PLUS是美国AutomationDirect公司的一款小型可编程逻辑控制器。 AutomationDirect CLICK PLUS 3.60版本存在加密问题漏洞，该漏洞源于使用不安全的RSA加密算法实现。

CVSS 8.3 · High EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1552.004 · Private Keys
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I. Basic Information for CVE-2025-59484

Vulnerability Information
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Vulnerability Title
AutomationDirect CLICK PLUS Use of a Broken or Risky Cryptographic Algorithm
Source: CVE Program / CVE List V5
Vulnerability Description
The use of a broken or risky cryptographic algorithm was discovered in firmware version 3.60 of the Click Plus PLC. The vulnerability relies on the fact that the software uses an insecure implementation of the RSA encryption algorithm.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用已被攻破或存在风险的密码学算法
Source: CVE Program / CVE List V5
Vulnerability Title
AutomationDirect CLICK PLUS 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AutomationDirect CLICK PLUS是美国AutomationDirect公司的一款小型可编程逻辑控制器。 AutomationDirect CLICK PLUS 3.60版本存在加密问题漏洞，该漏洞源于使用不安全的RSA加密算法实现。
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
AutomationDirect CLICK PLUS C0-0x CPU firmware 0 ~ v3.71 -
AutomationDirect CLICK PLUS C0-1x CPU firmware 0 ~ v3.71 -
AutomationDirect CLICK PLUS C2-x CPU firmware 0 ~ v3.71 -

II. Public POCs for CVE-2025-59484

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III. Intelligence Information for CVE-2025-59484

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Same Patch Batch · AutomationDirect · 2025-09-23 · 7 CVEs total

CVE-2025-55069 8.3 HIGH AutomationDirect CLICK PLUS Predictable Seed in Pseudo-Random Number Generator
CVE-2025-55038 6.8 MEDIUM AutomationDirect CLICK PLUS Missing Authorization
CVE-2025-58473 5.9 MEDIUM AutomationDirect CLICK PLUS Improper Resource Shutdown or Release
CVE-2025-57882 5.9 MEDIUM AutomationDirect CLICK PLUS Improper Resource Shutdown or Release
CVE-2025-58069 5.3 MEDIUM AutomationDirect CLICK PLUS Use of Hard-coded Cryptographic Key
CVE-2025-54855 4.2 MEDIUM AutomationDirect CLICK PLUS Cleartext Storage of Sensitive Information

IV. Related Vulnerabilities

Same product: CLICK PLUS C0-0x CPU firmware
Same vendor: AutomationDirect
Same weakness: CWE-327

V. Comments for CVE-2025-59484

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