---
cve: "CVE-2020-4076"
severity: "HIGH"
cvss: 7.8
epss: "37%"
vendor: "electron"
kev: false
exploited: false
published: "2020-07-07 00:05:21"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T00:24:42+02:00"
---

# CVE-2020-4076

> 7.8 HIGH · 🧪 PoC

## Beschreibung

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 contextIsolation are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 0552e0d5de46ffa3b481d741f1db5c779e201565 (Commit)
- d8f90444aa654f886016a22cb771df99c3616178 (Commit)

## Referenzen

- <https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824>
- <https://github.com/electron/electron/security/advisories/GHSA-m93v-9qjc-3g79>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2020-4076) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_