CVE-2025-2329CWE-908

High traffic causes corrupt SPI packets in OpenThread leading to denial of service

Medium · published July 25, 2025

CVSS v4.0
5.3
EPSS
0%
Percentile
13.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
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
EPSS
0.00232 · 13.3th percentile
Weakness
CWE-908 · Use of Uninitialized Resource
Published
2025-07-25T15:49Z
EPSS history
Timeline
  • 25 JUL 15:49Z
    High traffic causes corrupt SPI packets in OpenThread leading to denial of service
    cvelistv5