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Case File

CVE-2020-4077

HIGH · CVSS 7.7 EPSS 1.00% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-07-07 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.7. 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

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

CVE
CVE-2020-4077
Severity
HIGH
CVSS
7.7
EPSS
1.00%

Original NVD Description

In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, there is a context isolation bypass. Code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions. Apps using both `contextIsolation` and `contextBridge` are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.

Related CVEs

Other vulnerabilities affecting the same vendor(s)