CVE-2025-13712

Root code execution via untrusted checkpoint deserialization

Published Dec 23, 2025 · Updated Dec 23, 2025

Deserialization in Tencent HunyuanDiT's merge endpoint allows context-dependent attackers to execute code as root through a crafted file. The endpoint accepts attacker-controlled checkpoint data for model merging and passes it to PyTorch's object deserializer without constraining the input to safe tensor data. Execution requires the target to visit a malicious page or open a malicious file, after which embedded deserialization logic runs with the application's root privileges.

CVSS severity7.8
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Deserialization in Tencent HunyuanDiT's merge endpoint allows context-dependent attackers to execute code as root through a crafted file. The endpoint accepts attacker-controlled checkpoint data for model merging and passes it to PyTorch's object deserializer without constraining the input to safe tensor data. Execution requires the target to visit a malicious page or open a malicious file, after which embedded deserialization logic runs with the application's root privileges.

The record

CVE
CVE-2025-13712
Published
Dec 23, 2025
Updated
Dec 23, 2025
Vendor
Tencent
Product
Hunyuan-DiT
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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=Current

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Tencent · Hunyuan-DiTversion=Current

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
T1204.002Malicious File
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo