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Findings

Vulnerability · CVE-2025-43849

Retrieval-based-Voice-Conversion-WebUI is a voice changing framework based on VITS.

Published May 5, 2025 · corrected/updated May 5, 2025 · RVC-Project Retrieval-based-Voice-Conversion-WebUI · evidence confidence high

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 ckpt_a and cpkt_b variables take user input (e.g. a path to a model) and pass it to the merge function in process_ckpt.py, which uses them to load the models on those paths with torch.load, which can lead to unsafe deserialization and remote code execution. As of time of publication, no known patches exist.

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2025-43849 is a high public vulnerability record for RVC-Project Retrieval-based-Voice-Conversion-WebUI. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether RVC-Project Retrieval-based-Voice-Conversion-WebUI is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: RVC-Project Retrieval-based-Voice-Conversion-WebUI ≤ 2.2.231006 (≤ 2.2.231006). Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 8.9 (technical impact); EPSS 0.9% (30-day exploitation probability). It is not currently listed in the CISA Known Exploited catalog. Sources contributing to this record: epss, euvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.

  • Patch and remediation

    A patch or advisory reference is linked. Open the original publisher for availability by product version.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 5, 2025 · EUVD

    Detected

    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 ckpt_a and cpkt_b variables take user input (e.g. a path to a model) and pass it to the merge function in process_ckpt.py, which uses them to load the models on those paths with torch.load, which can lead to unsafe deserialization and remot

  2. May 5, 2025 · EUVD

    Updated

    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 ckpt_a and cpkt_b variables take user input (e.g. a path to a model) and pass it to the merge function in process_ckpt.py, which uses them to load the models on those paths with torch.load, which can lead to unsafe deserialization and remot

Affected

  • vendor RVC-Project Retrieval-based-Voice-Conversion-WebUI ≤ 2.2.231006≤ 2.2.231006

Sources

  • FIRST EPSSExploitation probabilityCVE-2025-43849

    30-day exploitation probability 0.9%

    first.org
  • EUVDVulnerability recordEUVD-2025-13501

    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 ckpt_a and cpkt_b variables take user input (e.g. a path to a model) and pass it to the merge function in process_ckpt.p

    euvd.enisa.europa.eu

References