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Case File

CVE-2020-20136

CRITICAL · CVSS 9.8 EPSS 1.52% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-12-14 · 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.

Public Exploit Signal

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

GitHub PoC Links
github.com ↗

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

CVE
CVE-2020-20136
Severity
CRITICAL
CVSS
9.8
EPSS
1.52%

Original NVD Description

QuantConnect Lean versions from 2.3.0.0 to 2.4.0.1 are affected by an insecure deserialization vulnerability due to insecure configuration of TypeNameHandling property in Json.NET library.