CVE-2025-2329

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

Published Jul 25, 2025 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Analysis

No analysis available yet

Remediation

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Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-22722 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title High traffic causes corrupt SPI packets in OpenThread leading to denial of service
Weaknesses CWE-908
References
Metrics cvssV4_0

{'score': 5.3, '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'}

Subscriptions

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Weaknesses
  • CWE-908

    Use of Uninitialized Resource

Sources

Status
PUBLISHED
Assigner
Silabs
Published
Updated
Aug 4, 2025, 6:31 PM
Reserved
Mar 14, 2025, 8:34 PM
Status
Deferred
Published
Jul 25, 2025, 4:15 PM
Modified
Jun 17, 2026, 9:06 AM