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VulnerabilityPublished Updated

CVE-2025-13712: Tencent HunyuanDiT · Deserialization of Untrusted Data

Affects Tencent HunyuanDiTSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.0 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

  1. Monitor Tencent’s official channels for patches and apply them immediately upon release.
  2. Until patches are available, restrict access to the merge endpoint by network segmentation and firewall rules to limit exposure.
  3. Implement strict input validation and sanitization on all user-supplied data, especially data processed by deserialization routines.
  4. Employ application-layer firewalls or intrusion detection systems to detect and block suspicious deserialization payloads.
  5. Educate users to avoid opening untrusted files or clicking on suspicious links to reduce the risk of user interaction exploitation.
  6. Conduct regular security audits and code reviews focusing on deserialization and input handling.
  7. Use runtime application self-protection (RASP) tools to detect and prevent exploitation attempts in real time.
  8. Maintain comprehensive logging and monitoring to quickly identify any exploitation attempts or anomalous behavior.
  9. Consider deploying endpoint detection and response (EDR) solutions to detect post-exploitation activities.
  10. Develop and test incident response plans specifically addressing remote code execution scenarios.

Description

Tencent HunyuanDiT merge Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tencent HunyuanDiT. 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 merge endpoint. 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. Was ZDI-CAN-27190.

References

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