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CVE-2025-4321— DoS in RS9116W-WiSeConnect L2CAP protocol due to reception of malformed packets

Quick assessment

Affected
silabs.com RS9116W
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Silabs RS9116W是美国Silabs公司的一个无线连接模块。 Silabs RS9116W存在安全漏洞，该漏洞源于接收畸形L2CAP数据包可能导致拒绝服务攻击。

AI Predicted 7.5 Difficulty: Trivial EPSS 0.18% · P6

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-4321

Vulnerability Information
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Vulnerability Title
DoS in RS9116W-WiSeConnect L2CAP protocol due to reception of malformed packets
Source: CVE Program / CVE List V5
Vulnerability Description
In a Bluetooth device, using RS9116-WiseConnect SDK experiences a Denial of Service, if it receives malformed L2CAP packets, only hard reset will bring the device to normal operation
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对不一致结构体元素处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Silabs RS9116W 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Silabs RS9116W是美国Silabs公司的一个无线连接模块。 Silabs RS9116W存在安全漏洞，该漏洞源于接收畸形L2CAP数据包可能导致拒绝服务攻击。
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

Vendor Product Affected Versions CPE Subscribe
silabs.com RS9116W 0 ~ 2.12.1 -

II. Public POCs for CVE-2025-4321

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III. Intelligence Information for CVE-2025-4321

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IV. Related Vulnerabilities

Same vendor: silabs.com
Same weakness: CWE-240

V. Comments for CVE-2025-4321

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