CVE-2025-3873Buffer overflow in Si91x crypto APIs

Description

The following APIs for the Silcon Labs SiWx91x prior to vesion 3.4.0 failed to check the size of the output buffer of the caller which could lead to data corruption on the host (Cortex-M4) application. sl_si91x_aes sl_si91x_gcm sl_si91x_ccm sl_si91x_sha

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://docs.silabs.com/wiseconnect/latest/sisdk-wifi-release-notes/ release-notes
• https://community.silabs.com/068Vm00000SSlOu vendor-advisorypermissions-required