CVE-2026-4930— DPA Countermeasures weakening on Series 3 devices
Possible ATT&CK Techniques 1AI
T1055 · Process InjectionAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| 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
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Pages for CVE-2026-4930 (1)
IV. Related Vulnerabilities
Same product: Simplicity SDK
- CVE-2026-8676
Silicon Simplicity SDK 安全漏洞 - CVE-2025-14972
Insufficient DPA countermeasure reseeding - CVE-2025-14547
ECJ-PAKE Integer Underflow Vulnerability in Silicon Labs PSA - CVE-2025-7432
DPA countermeasures not reseeded under certain conditions - CVE-2025-8414
Zigbee Green Power Host Buffer Overflow Vulnerability
Same vendor: silabs.com
- CVE-2026-65936
RS9116W/SiWx917 malformed packet with increased length fiel - CVE-2026-65935
Bypassing passkey entry in legacy pairing - CVE-2026-65934
BT122 plaintext pause encryption request causes DOS - CVE-2026-65933
BT122 malformed packet with increased length field causes m - CVE-2026-65932
BT122 stops advertising
Same weakness: CWE-331
- CVE-2026-4936
Power System Insufficient Entropy - CVE-2026-4937
Power System Insufficient Entropy - CVE-2026-19906
pkp pkp-lib API Key Generation APIProfileForm.php setData en - CVE-2026-19748
Tenda CH7 Kylin Web Service CWebSessionManager_ParseSession - CVE-2026-71851
crypto-js: Insufficient Entropy in Cryptographic Secret Gene
V. Comments for CVE-2026-4930
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