Description

Buffer Overflow vulnerability in SteelSeries GG (macOS) v.107.0.0 allows a remote attacker to execute arbitrary code via the libSSEdevice.dylib, dup_wcs components

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.8",
  "pubDate": "2026-08-17T21:16:44.823Z",
  "pubdate": "2026-08-17T21:16:44.823Z",
  "executiveSummary": "A critical Buffer Overflow vulnerability has been identified within SteelSeries GG (macOS) v.107.0.0. This security defect arises from insecure handling of data within specific binary components of the application.\nThe primary impact of this vulnerability is Remote Code Execution (RCE). A remote attacker possessing network proximity or interaction capabilities can exploit this flaw to execute arbitrary code within the context of the affected application.\nThe affected product is SteelSeries GG for macOS version 107.0.0, specifically impacting the libSSEdevice.dylib library and the dup_wcs functional component.\nThe risk implications are severe, as successful exploitation could lead to full system compromise, unauthorized access to sensitive user data, and complete control over the application's execution flow. The attacker capabilities include running arbitrary payloads with the privileges of the running SteelSeries GG daemon or application instance.\nWhile specific authentication requirements and vector specifics are constrained by the component interface, exploitation generally requires the targeted processing of malformed inputs via the vulnerable dynamic library functions.",
  "technicalDetails": "The vulnerability resides in the libSSEdevice.dylib dynamic library utilized by SteelSeries GG (macOS) v.107.0.0, specifically targeting the dup_wcs component and associated string or memory duplication routines.\nThe root cause of the vulnerability is a classic stack or heap-based buffer overflow stemming from insufficient bounds checking and improper validation of input lengths prior to copying data into fixed-size memory buffers within the dup_wcs function.\nDuring normal execution, libSSEdevice.dylib processes internal device communications and data structures. If an attacker can supply or influence the input data processed by the dup_wcs routine, they can trigger an out-of-bounds write condition.\nThe step-by-step attack flow involves the following mechanics: First, the attacker crafts a malicious payload designed to exceed the allocated buffer size within the vulnerable component. Second, this malformed data is introduced to the application via the mechanism interfacing with libSSEdevice.dylib. Third, when the dup_wcs function processes the input and copies it into memory without enforcing strict length constraints, the excess data overwrites adjacent memory regions, including saved frame pointers and return addresses on the stack or critical function pointers on the heap.\nBy meticulously structuring the payload, the attacker can hijack the instruction pointer (RIP/EIP) upon function return, redirecting execution flow to shellcode or utilizing Return-Oriented Programming (ROP) chains.\nThe affected software version is strictly v.107.0.0 on the macOS platform. The vulnerability requires the target application or associated daemon to be actively running and accessible to the attack vector. Depending on the exact exposure of the vulnerable interface, remote exploitation may be feasible if exposed services improperly handle untrusted network or inter-process communication inputs.\nThe post-exploitation impact includes arbitrary code execution with the privileges of the compromised SteelSeries GG process, potentially allowing the threat actor to pivot deeper into the macOS environment, deploy persistent malware, or access local user resources."
}