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CVE-2025-7432— DPA countermeasures not reseeded under certain conditions

Quick assessment

Affected
silabs.com Simplicity SDK
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.

Silicon Labs Series 2是美国芯科（Silicon）公司的一个物联网系统平台。 Silicon Labs Series 2存在安全漏洞，该漏洞源于DPA对策在某些条件下未重新播种，可能导致通过DPA攻击提取密钥。

AI Predicted 7.5 Difficulty: Hard EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1558 · Steal or Forge Kerberos Tickets
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I. Basic Information for CVE-2025-7432

Vulnerability Information
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Vulnerability Title
DPA countermeasures not reseeded under certain conditions
Source: CVE Program / CVE List V5
Vulnerability Description
DPA countermeasures in Silicon Labs' Series 2 devices are not reseeded under certain conditions.  This may allow an attacker to eventually extract secret keys through a DPA attack.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息熵不充分
Source: CVE Program / CVE List V5
Vulnerability Title
Silicon Labs Series 2 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Silicon Labs Series 2是美国芯科（Silicon）公司的一个物联网系统平台。 Silicon Labs Series 2存在安全漏洞，该漏洞源于DPA对策在某些条件下未重新播种，可能导致通过DPA攻击提取密钥。
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
silabs.com Simplicity SDK 0 ~ 2025.12.0 -

II. Public POCs for CVE-2025-7432

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III. Intelligence Information for CVE-2025-7432

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IV. Related Vulnerabilities

Same product: Simplicity SDK
Same vendor: silabs.com
Same weakness: CWE-331

V. Comments for CVE-2025-7432

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