CVE-2023-51392

Silicon Labs EFR32xxx parts with classic key storage do not use hardware accelerated AES-CCM

Published Feb 23, 2024 CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Description
Ember ZNet between v7.2.0 and v7.4.0 used software AES-CCM instead of integrated hardware cryptographic accelerators, potentially increasing risk of electromagnetic and differential power analysis sidechannel attacks.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2023-56113 Ember ZNet between v7.2.0 and v7.4.0 used software AES-CCM instead of integrated hardware cryptographic accelerators, potentially increasing risk of electromagnetic and differential power analysis sidechannel attacks.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00025}

epss

{'score': 0.00033}

Type Values Removed Values Added
First Time appeared Silabs
Silabs emberznet
Weaknesses CWE-327
CPEs cpe:2.3:a:silabs:emberznet:*:*:*:*:*:*:*:*
Vendors & Products Silabs
Silabs emberznet
Type Values Removed Values Added
Weaknesses CWE-327
Metrics ssvc

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

Type Values Removed Values Added
Weaknesses CWE-1240
Weaknesses

Sources

Status
PUBLISHED
Assigner
Silabs
Published
Updated
Apr 22, 2025, 4:15 PM
Reserved
Dec 18, 2023, 8:56 PM
Status
Analyzed
Published
Feb 23, 2024, 5:15 PM
Modified
Jun 17, 2026, 6:40 AM