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I. Basic Information for CVE-2025-3873
Vulnerability Information

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Vulnerability Title
Buffer overflow in Si91x crypto APIs
Source: NVD (National Vulnerability Database)
Vulnerability Description
The following APIs for the Silcon Labs SiWx91x prior to vesion 3.4.0 failed to check the size of the output buffer of the caller which could lead to data corruption on the host (Cortex-M4) application. sl_si91x_aes sl_si91x_gcm sl_si91x_ccm sl_si91x_sha
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
Silicon SiWx91x 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Silicon SiWx91x是美国芯科科技(Silicon)公司的一款无线电板。 Silicon SiWx91x 3.4.0之前版本存在安全漏洞,该漏洞源于sl_si91x_aes、sl_si91x_gcm、sl_si91x_ccm和sl_si91x_sha API未检查调用者输出缓冲区大小,可能导致主机应用程序数据损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
silabs.comWiseConnect 3.0.0 ~ 3.4.0 -
II. Public POCs for CVE-2025-3873
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III. Intelligence Information for CVE-2025-3873
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