CVE-2025-3622

Code execution via unsafe model deserialization

Published Apr 15, 2025 · Updated Apr 21, 2025

Deserialization in XorbitsAI Xinference 1.4.0 and 1.4.1 allows attackers to execute code via malicious CosyVoice model files. The CosyVoiceModel.load method passes llm_model, flow_model, and hift_model to torch.load without weights_only=True, permitting pickle objects to invoke code. The attacker must be able to supply one of those model paths to the load routine; execution inherits the Xinference process's permissions.

CVSS severity5.1
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in XorbitsAI Xinference 1.4.0 and 1.4.1 allows attackers to execute code via malicious CosyVoice model files. The CosyVoiceModel.load method passes llm_model, flow_model, and hift_model to torch.load without weights_only=True, permitting pickle objects to invoke code. The attacker must be able to supply one of those model paths to the load routine; execution inherits the Xinference process's permissions.

The record

CVE
CVE-2025-3622
Published
Apr 15, 2025
Updated
Apr 21, 2025
Vendor
XorbitsAI
Product
Xinference
Classifications
CWE-502, CWE-20
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.4.0
  2. Affected versionversion=1.4.1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

XorbitsAI · Xinferenceversion=1.4.0; version=1.4.1

Published CVSS scores

5.5VulDBCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.1VulDBCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
5.2VulDBAV:A/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CWE-20Improper Input Validation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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