Unrated severityNVD Advisory· Published Jul 23, 2026· Updated Jul 24, 2026
Weak entropy initialization in Silicon Labs Matter SiWx917 TinyCrypt path
CVE-2026-6924
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.
Affected products
1Patches
Vulnerability mechanics
References
2- github.com/SiliconLabs/matter/tree/release_2.3.1-1.3mitrepatch
- siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/a45Vm0000009SzZIAUmitrevendor-advisorypermissions-required
News mentions
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