CVE-2026-4930

DPA Countermeasures weakening on Series 3 devices

Published Jun 25, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Silabs
Silabs simplicity Sdk
Vendors & Products Silabs
Silabs simplicity Sdk
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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
Title DPA Countermeasures weakening on Series 3 devices
Weaknesses CWE-331
References
Metrics cvssV4_0

{'score': 7.1, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Silabs
Published
Updated
Jun 25, 2026, 7:03 PM
Reserved
Mar 26, 2026, 7:20 PM
Status
Deferred
Published
Jun 25, 2026, 7:16 PM
Modified
Oct 25, 2026, 10:10 PM