CVE-2025-4321

HIGH

RS9116W < 2.12.1 - Denial of Service via Malformed L2CAP Packets

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2025-4321. PoCs published by Salman-Sec, Villain-arc-begins.

AI-analyzed exploit summary The repository contains only a README.md with a hypothetical patch management scenario for CVE-2025-4321 but no actual exploit code, technical details, or proof-of-concept. It appears to be a placeholder or incomplete content.

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

Exploits (2)

nomisec STUB
by Salman-Sec · poc
https://github.com/Salman-Sec/Patch-management-

The repository contains only a README.md with a hypothetical patch management scenario for CVE-2025-4321 but no actual exploit code, technical details, or proof-of-concept. It appears to be a placeholder or incomplete content.

Classification
Stub 95%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: unspecified
No auth needed
devstral-2 · analyzed May 07, 2026 Full analysis →
nomisec SUSPICIOUS
by Villain-arc-begins · poc
https://github.com/Villain-arc-begins/Patch-management-

The repository contains no exploit code or technical details about CVE-2025-4321, only a vague scenario description. It appears to be a placeholder or lure rather than a legitimate PoC.

Classification
Suspicious 90%
Attack Type
Other
Complexity
Theoretical
Reliability
Theoretical
Target: unspecified
No auth needed
devstral-2 · analyzed May 07, 2026 Full analysis →

References (1)

Core 1
Core References
Various Sources vendor-advisory permissions-required
https://community.silabs.com/068Vm00000YV9DL

Scores

CVSS v4 7.1
EPSS 0.0016
EPSS Percentile 5.1%
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

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-240 CWE-617
Status published
Products (1)
silabs.com/RS9116W < 2.12.1
Published Nov 17, 2025
Tracked Since Feb 18, 2026