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CVE-2025-43851

Rvc-project Retrieval-based-voice-conversion-webui remote code execution

9.8 CRITICALEPSS 1.00%
  1. Published5 May 2025

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
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≤ 2.2.231006

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2025-43851 being actively exploited?

CVE-2025-43851 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.00%.

How severe is CVE-2025-43851?

CVE-2025-43851 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.00% probability of exploitation.

Which products are affected by CVE-2025-43851?

Affected products include Rvc-project Retrieval-based-voice-conversion-webui.

How do I fix CVE-2025-43851?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-43851 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.