CVE-2025-2329

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

CVSS 5.3 MEDIUMEPSS 0.2%CWE-908

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.3EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

25 Jul 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

silabs.com · OpenThread

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References

https://community.silabs.com/069Vm00000SNyueIAD https://github.com/SiliconLabs/gecko_sdk/releases https://github.com/SiliconLabs/simplicity_sdk/releases