CVE-2025-50472: 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()`…

PriorityP264critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

1.18%

63.7th percentile

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.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
msrc	azl3_apparmor_3.1.7-1_on_azure_linux_3.0	—	—
msrc	azl3_ceph_18.2.2-8_on_azure_linux_3.0	—	—
msrc	azl3_libglvnd_1.7.0-2_on_azure_linux_3.0	—	—
msrc	cbl2_apparmor_3.0.4-3_on_cbl_mariner_2.0	—	—
msrc	cbl2_pytorch_2.5.1-1_on_cbl_mariner_2.0	—	—

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

vendor_msrc7.5HIGH

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