Tencent TFace eval Deserialization of Untrusted Data Remote Code Execution Vulnerability

December 1st, 2025
ZDI-25-1035 ZDI-CAN-27187

CVE ID

CVE-2025-13711

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

TFace

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tencent TFace. 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 eval 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.

Additional Details

Tencent has issued an update to correct this vulnerability. More details can be found at:
https://github.com/Tencent/TFace/commit/7b2eed297d43dcdd1e3d45bfdfc950478e3af5d9

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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