EUVD-2026-60446
GHSA-7vq4-w787-xmpp
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Client-side desktop dylib overflow needs attacker-supplied input processed by the app, so AC:H and UI:R rather than the input's AC:L/UI:N; successful exploitation yields full code execution (C/I/A:H).
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
4DescriptionCVE.org
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
AnalysisAI
Arbitrary code execution in SteelSeries GG for macOS v107.0.0 stems from a buffer overflow in the bundled libSSEdevice.dylib, specifically its dup_wcs (wide-character string duplication) routine, letting an attacker who can feed crafted input to the client run code with the privileges of the SteelSeries process. The flaw is disclosed by MITRE with an accompanying Cipher Security Labs research write-up (publicly available research/exploit material), but it is not on the CISA KEV list and EPSS is low at 0.21% (12th percentile). Note a material discrepancy: the CVSS vector is scored AV:N (network) yet the affected component is a local desktop peripheral-management library, which typically implies attacker-supplied data rather than an exposed network service.
Technical ContextAI
SteelSeries GG is the desktop companion/management application for SteelSeries gaming peripherals (mice, keyboards, headsets), and libSSEdevice.dylib is its native macOS device-handling library. The root cause is CWE-120 (Buffer Copy without Checking Size of Input, a classic unbounded buffer overflow); the vulnerable function dup_wcs duplicates a wide-character (wchar_t) string, and the absence of a bounds check on the source length allows an oversized input to overflow the destination buffer. Because this is a native dylib loaded into a privileged/user-context desktop process, corrupting adjacent memory or control structures can lead to control-flow hijacking and arbitrary code execution. The CPE data provided is a placeholder (cpe:2.3:a:n/a:n/a:*:...) and does not identify the product, so affected-product identification relies on the CVE description rather than structured NVD CPE.
RemediationAI
No vendor-released patch or fixed version is identified in the available data, so a specific upgrade target cannot be cited; monitor SteelSeries GG release notes and update to any build newer than v107.0.0 that references this fix once published. As compensating controls on macOS endpoints: uninstall or disable SteelSeries GG on systems that do not require it (trade-off: peripheral customization/RGB/config features stop working); restrict who can deliver untrusted input or configuration files to the application and avoid importing untrusted device/config data; and apply standard macOS endpoint protections (application allowlisting/EDR) to detect exploitation of the SteelSeries process. Consult the Cipher Security Labs research (https://github.com/Cipher-Security-Labs/research/tree/main/CSL-2026-03) and the NVD entry (https://nvd.nist.gov/vuln/detail/CVE-2026-39255) for updated fix information before deploying, since these mitigations reduce functionality rather than fully remediate.
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External POC / Exploit Code
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