CVE-2025-2329 Details
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.
A denial-of-service vulnerability has been identified in Silicon Labs OpenThread RCP, specifically in high traffic environments. The issue arises because the SPI transmit buffer is not properly cleared, which can lead to the transmission of corrupted packets over SPI to the host. This corruption causes the host to reset the RCP, thereby creating a denial-of-service condition.
Users can upgrade to the latest version of the Silicon Labs OpenThread SDK to address this vulnerability. The patched version is included in the Simplicity SDK release notes.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 25, 2025CISA-ADP
Assessed Jul 25, 2025References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://community.silabs.com/069Vm00000SNyueIAD | [email protected] | Permission RequiredVendor |
| https://github.com/SiliconLabs/gecko_sdk/releases | [email protected] | Release NotesVendor |
| https://github.com/SiliconLabs/simplicity_sdk/releases | [email protected] | Release NotesVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-908 | Use of Uninitialized Resource | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Silicon Labs OpenThread RCP | All versions |
CPE
Remediation
| |
| Silicon Labs Gecko SDK | >= 4.4.0, < 4.4.6 (semver) |
CPE
Remediation
| |
| Silicon Labs Simplicity SDK | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jul 25, 2025 | New CVE Received | [email protected] |