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Case File

CVE-2019-20478

CRITICAL · CVSS 9.8 EPSS 6.75% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-02-19 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution
External Security References

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2019-20478
Severity
CRITICAL
CVSS
9.8
EPSS
6.75%

Original NVD Description

In ruamel.yaml through 0.16.7, the load method allows remote code execution if the application calls this method with an untrusted argument. In other words, this issue affects developers who are unaware of the need to use methods such as safe_load in these use cases.