CVE-2025-13713

Code execution via unvalidated pretrained model deserialization

Published Dec 23, 2025 · Updated Dec 23, 2025

Deserialization in Tencent Hunyuan3D-1 revision af913e6 allows remote attackers to execute code through a malicious model file. The load_pretrained function accepts a user-supplied checkpoint without validating its serialized contents, allowing object reconstruction to invoke attacker-controlled code. Execution requires the target to open the file or visit a page that supplies it, and the resulting process can run with root privileges.

CVSS severity7.8
High
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in Tencent Hunyuan3D-1 revision af913e6 allows remote attackers to execute code through a malicious model file. The load_pretrained function accepts a user-supplied checkpoint without validating its serialized contents, allowing object reconstruction to invoke attacker-controlled code. Execution requires the target to open the file or visit a page that supplies it, and the resulting process can run with root privileges.

The record

CVE
CVE-2025-13713
Published
Dec 23, 2025
Updated
Dec 23, 2025
Vendor
Tencent
Product
Hunyuan3D-1
Classifications
CWE-502, T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 23, 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?

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  1. Affected versionversion=af913e6fe74324c60f6e50270803dd24d2afb26d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Tencent · Hunyuan3D-1version=af913e6fe74324c60f6e50270803dd24d2afb26d

Published CVSS scores

7.8Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1204.002User Execution: Malicious File
T1203Exploitation for Client Execution

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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