Advisory Details

December 1st, 2025

Tencent TFace restore_checkpoint Deserialization of Untrusted Data Remote Code Execution Vulnerability

ZDI-25-1036
ZDI-CAN-27185

CVE ID CVE-2025-13709
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 restore_checkpoint 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/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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