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CVE-2026-4930— DPA Countermeasures weakening on Series 3 devices

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 Simplicity SDK是Silicon公司的一套嵌入式软件开发工具包。 Silicon Simplicity SDK存在加密问题漏洞，该漏洞源于SYMCRYPTO的DPA对策可被削弱，可能导致攻击者通过强制特定种子值提取密钥。

AI Predicted 3.9 Difficulty: Hard EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 1

VendorProduct Version RangeStatus
silabs.com Simplicity SDK ≤ *.* affected
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I. Basic Information for CVE-2026-4930

Vulnerability Information
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Vulnerability Title
DPA Countermeasures weakening on Series 3 devices
Source: CVE Program / CVE List V5
Vulnerability Description
SYMCRYPTO is the SiXG301's host side hardware engine accessed by PSA crypto library that accelerates symmetric cryptographic operations (AES encryption/decryption and hashing). DPA Countermeasures on SYMCRYPTO can be weakened (reduced entropy) by forcing certain seed values if an attacker gains code execution capability on the impacted device. * Therefore, the keys loaded on SYMCRYPTO may be more vulnerable to extraction through DPA attacks than intended
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:P/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
信息熵不充分
Source: CVE Program / CVE List V5
Vulnerability Title
Silicon Simplicity SDK 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Silicon Simplicity SDK是Silicon公司的一套嵌入式软件开发工具包。 Silicon Simplicity SDK存在加密问题漏洞，该漏洞源于SYMCRYPTO的DPA对策可被削弱，可能导致攻击者通过强制特定种子值提取密钥。
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 ~ *.* -

II. Public POCs for CVE-2026-4930

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III. Intelligence Information for CVE-2026-4930

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Vendor Pages for CVE-2026-4930 (1)

IV. Related Vulnerabilities

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