CVE-2025-43851: Rvc-Project Retrieval-Based-Voice-Conversion-Webui

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

Retrieval-based-Voice-Conversion-WebUI is a voice changing framework based on VITS. Versions 2.2.231006 and prior are vulnerable to unsafe deserialization. The model_choose variable takes user input (e.g. a path to a model) and passes it to the uvr function in vr.py. In uvr , a new instance of AudioPre class is created with the model_path attribute containing the aformentioned user input. In the AudioPre class, the user input, is used to load the model on that path with torch.load, which can lead to unsafe deserialization and remote code execution. As of time of publication, no known patches exist.

Affected products

• Rvc-Project Retrieval-Based-Voice-Conversion-Webui: up to and including 2.2.231006

Published 2025-05-05. Last modified 2026-06-17.