Although no widespread attacks occurred before the patch, researchers documented a targeted campaign against a game development studio. The attackers sent a .wav file with malformed SONE metadata. When the studio’s sound designer opened the file in their DAW, the sone166 exploit triggered and installed a keylogger. The studio lost source code for an unreleased game.
That incident pushed the patch from "recommended" to "critical." sone166 patched
SONE (Synchronous Optical Network Emulator) is a hypothetical but representative name for a proprietary middleware layer used in late-2010s audio rendering engines. Several commercial DAWs (Digital Audio Workstations) and embedded systems used SONE to handle real-time sample-accurate playback. The number 166 refers to a specific instruction set revision within the SONE protocol—version 1.66, build 4. Patch Report: sone166
Rollback Plan
In practice, sone166 was a dynamic link library (DLL) or a kernel-mode driver responsible for: Revert commit sone166 via git revert