Deserialization in Rvc-Project Retrieval-Based-Voice-Conversion-Webui
CVE-2025-43852
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 , if model_name contains the string "DeEcho", a new instance of AudioPreDeEcho class is created with the model_path attribute containing the aforementioned user input. In the AudioPreDeEcho 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.
Vulnerability class: Insecure Deserialization
EPSS: 0.009 (55.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Rvc-project Retrieval-based-voice-conversion-webui — versions <= 2.2.231006
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Product, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-43852?
- CVE-2025-43852 is a critical-severity vulnerability in Rvc-Project Retrieval-Based-Voice-Conversion-Webui, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2025-05-05.
- How severe is CVE-2025-43852?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-43852 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.