CVE-2025-2329

MEDIUM

Silicon Labs OpenThread - DoS

Title source: llm
STIX 2.1

Description

In high traffic environments, a Silicon Labs OpenThread RCP (see impacted versions) fails to clear the SPI transmit buffer and may send a corrupt packet over SPI to its host,  causing the host to reset the RCP which results in a denial of service.

References (3)

Scores

CVSS v4 5.3
EPSS 0.0004
EPSS Percentile 11.5%
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-908
Status published
Products (3)
silabs.com/OpenThread < 2.4.6
silabs.com/OpenThread 2.5.0 - 2.5.2
silabs.com/OpenThread 2.6.0 - 2.6.2
Published Jul 25, 2025
Tracked Since Feb 18, 2026