GHSA-fm6c-f59h-7mmg · Severity: low · Ecosystem: pip — MS SWIFT Remote Code Execution via unsafe PyYAML deserialization
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.
Conclusion & alert: CVE-2025-50460 is rated High Risk (74.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 7.09%, 92th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +2.95% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-28 | 4.14% | 7.09% | +2.95% |
| 2 | 2026-04-17 | 3.43% | 4.14% | +0.71% |
| 3 | 2026-04-06 | — | 3.43% | — |
Full EPSS history (17 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-fm6c-f59h-7mmg · Severity: low · Ecosystem: pip — MS SWIFT Remote Code Execution via unsafe PyYAML deserialization
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| No affected products in dataset. | |||