by Kastro
Paper/Archive/CVE-2025-50460

CVE-2025-50460

mitre — A remote code execution (RCE) vulnerability exists in the ms-swift project version 3.3.0 due to unsafe deserialization in tests/run.py us…

EPSS 3%public exploitCVSS 9.8
critical.is priorityof 100
57
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 85.9.859 × 2017.2Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

A remote code execution (RCE) vulnerability exists in the ms-swift project version 3.3.0 due to unsafe deserialization in tests/run.py using yaml.load() from the PyYAML library (versions = 5.3.1). If an attacker can control the content of the YAML configuration file passed to the --run_config parameter, arbitrary code can be executed during deserialization. This can lead to full system compromise. The vulnerability is triggered when a malicious YAML file is loaded, allowing the execution of arbitrary Python commands such as os.system(). It is recommended to upgrade PyYAML to version 5.4 or higher, and to use yaml.safe_load() to mitigate the issue.

Affected

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

refgithub.com/modelscope/ms-swiftrefgithub.com/modelscope/ms-swift/blob/main/tests/run.py#L420refgithub.com/advisories/GHSA-6757-jp84-gxfxexploitgithub.com/Anchor0221/CVE-2025-50460