The modelscope/ms-swift library thru 2.6.1 is vulnerable to arbitrary code execution through deserialization of untrusted data within the `load_model_meta()` function of the `ModelFileSystemCache()` class. Attackers can execute arbitrary code and commands by crafting a malicious serialized `.mdl` payload, exploiting the use of `pickle.load()` on data from potentially untrusted sources. This vulnerability allows for remote code execution (RCE) by deceiving victims into loading a seemingly harmless checkpoint during a normal training process, thereby enabling attackers to execute arbitrary code on the targeted machine. Note that the payload file is a hidden file, making it difficult for the victim to detect tampering. More importantly, during the model training process, after the `.mdl` file is loaded and executes arbitrary code, the normal training process remains unaffected'meaning the user remains unaware of the arbitrary code execution.
History

Tue, 05 Aug 2025 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Modelscope
Modelscope ms Swift
Vendors & Products Modelscope
Modelscope ms Swift

Fri, 01 Aug 2025 18:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-502
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 01 Aug 2025 16:15:00 +0000

Type Values Removed Values Added
Description The modelscope/ms-swift library thru 2.6.1 is vulnerable to arbitrary code execution through deserialization of untrusted data within the `load_model_meta()` function of the `ModelFileSystemCache()` class. Attackers can execute arbitrary code and commands by crafting a malicious serialized `.mdl` payload, exploiting the use of `pickle.load()` on data from potentially untrusted sources. This vulnerability allows for remote code execution (RCE) by deceiving victims into loading a seemingly harmless checkpoint during a normal training process, thereby enabling attackers to execute arbitrary code on the targeted machine. Note that the payload file is a hidden file, making it difficult for the victim to detect tampering. More importantly, during the model training process, after the `.mdl` file is loaded and executes arbitrary code, the normal training process remains unaffected'meaning the user remains unaware of the arbitrary code execution.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2025-08-01T00:00:00.000Z

Updated: 2025-08-01T17:17:49.928Z

Reserved: 2025-06-16T00:00:00.000Z

Link: CVE-2025-50472

cve-icon Vulnrichment

Updated: 2025-08-01T17:17:21.549Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-08-01T16:15:41.750

Modified: 2025-08-04T15:06:15.833

Link: CVE-2025-50472

cve-icon Redhat

No data.