CVE WatchJul 23, 2026

CVE-2026-6924

A bug in the entropy initialization for SiWx917 causes the DRBG to use a predictable seed. As such, all random numbers generated in the Matt

CVSS

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No CVSS

EPSS

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KEV

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Exploit Today

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0-100

Published: Jul 23, 2026 · Last modified: Jul 23, 2026 · CWE-336

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references

github.comhttps://github.com/SiliconLabs/matter/tree/release_2.3.1-1.3
siliconlabs.lightning.force.comhttps://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/a45Vm0000009SzZIAU?operationContext=S1

Related CVEs

No related CVEs by CWE or product.