A bug in the entropy initialization for SiWx917 causes the DRBG to use a predictable seed. As such, all random numbers generated in the Matter code use the same stream of numbers. This vulnerability was discovered after the impacted repository was already deprecated.

Project Subscriptions

Vendors Products
Silicon Labs Subscribe
Silicon Labs Matter Github Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 27 Jul 2026 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Silicon Labs
Silicon Labs silicon Labs Matter Github
Vendors & Products Silicon Labs
Silicon Labs silicon Labs Matter Github

Fri, 24 Jul 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 23 Jul 2026 21:45:00 +0000

Type Values Removed Values Added
Description A bug in the entropy initialization for SiWx917 causes the DRBG to use a predictable seed. As such, all random numbers generated in the Matter code use the same stream of numbers. This vulnerability was discovered after the impacted repository was already deprecated.
Title Weak entropy initialization in Silicon Labs Matter SiWx917 TinyCrypt path
Weaknesses CWE-336
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: Silabs

Published:

Updated: 2026-07-24T13:40:36.220Z

Reserved: 2026-04-23T17:11:02.116Z

Link: CVE-2026-6924

cve-icon Vulnrichment

Updated: 2026-07-24T13:40:29.288Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-27T12:50:56Z

Weaknesses