CVE-2025-13706 Tencent PatrickStar merge_checkpoint Deserialization of Untrusted Data Remote Code Execution Vulnerability

High 7.8 Published Updated

Remote attackers can execute arbitrary code with root privileges by tricking users into opening malicious files via the merge_checkpoint endpoint.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-13706?

CVE-2025-13706 is a high-severity unsafe deserialization vulnerability in Tencent PatrickStar, published on 23 Dec 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Tencent PatrickStar merge_checkpoint Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tencent PatrickStar. 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_checkpoint 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-27182.

Weakness: CWE-502

Which versions are affected by CVE-2025-13706?

How do I fix CVE-2025-13706?

No fix has been published for CVE-2025-13706 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2025-13706 being exploited?

There is no known exploitation of CVE-2025-13706 in the wild and no public exploit code.

Sources

Also known as GHSA-v8hm-mj58-8vcm.

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