CVE-2026-2815 - Vulnerability Details - OpenCVE

Incorrect use of the PUF key for user key generation in EFR32xG27 results in predictable keys

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Silicon Labs	Sisdk

No data.

No data.

References

Link	Providers
https://github.com/SiliconLabsSoftware/sisdk-release
https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm00000kDYsfIAG?operationContext=S1

History

Fri, 26 Jun 2026 10:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Silicon Labs Silicon Labs sisdk
Vendors & Products		Silicon Labs Silicon Labs sisdk

Thu, 25 Jun 2026 15:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 25 Jun 2026 14:00:00 +0000

Type	Values Removed	Values Added
Description		Incorrect use of the PUF key for user key generation in EFR32xG27 results in predictable keys
Title		Incorrect use of the PUF key for user key generation in EFR32xG27 results in predictable keys
Weaknesses		CWE-339
References		https://github.com/SiliconLabsSoftware/sisdk-release https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm00000kDYsfIAG?operationContext=S1
Metrics		cvssV4_0 `{'score': 8.4, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: Silabs

Published: 2026-06-25T13:27:45.446Z

Updated: 2026-06-25T14:03:49.129Z

Reserved: 2026-02-19T16:49:32.148Z

Link: CVE-2026-2815

Vulnrichment

Updated: 2026-06-25T14:03:44.190Z

NVD

No data.

Redhat

No data.

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