CVE-2026-4930

HIGH

silabs.com Simplicity SDK - DPA Countermeasures Weakening on Series 3 Devices

Title source: rule
STIX 2.1

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

References (1)

Core 1
Core References
Third Party Advisory, Permissions Required third-party-advisory permissions-required
https://community.silabs.com/068Vm00000sjHs3

Scores

CVSS v4 7.1
EPSS 0.0010
EPSS Percentile 1.1%
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-331
Status published
Products (1)
silabs.com/Simplicity SDK < *.*
Published Jun 25, 2026
Tracked Since Jun 26, 2026