Tencent HunyuanVideo load_vae Deserialization of Untrusted Data Remote Code Execution Vulnerability

December 1st, 2025
ZDI-25-1030 ZDI-CAN-27186

CVE ID

CVE-2025-13710

CVSS Score

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

Affected Vendors

Tencent

Affected Products

HunyuanVideo

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tencent HunyuanVideo. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the load_vae function.The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of root.

Additional Details

Tencent has issued an update to correct this vulnerability. More details can be found at:
https://github.com/Tencent-Hunyuan/HunyuanVideo/commit/b47e10b95483aa8458b64d23350844c29e91c408

Disclosure Timeline

  • 2025-05-22 - Vulnerability reported to vendor
  • 2025-12-01 - Coordinated public release of advisory
  • 2025-12-01 - Advisory Updated

Credit

Peter Girnus (@gothburz) of Trend Zero Day Initiative

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