Is CVE-2020-4077 actively exploited?

CVE-2020-4077 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2020-4077?

CVE-2020-4077 has a CVSS score of 7.7 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N.

How do I patch CVE-2020-4077?

Patch guidance is available from electronjs security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2020-4077.

Fix CVE-2020-4077 - HIGH electronjs electron

Q: Which products are affected by CVE-2020-4077?

23 products: electronjs electron, electronjs electron, electronjs electron, electronjs electron, electronjs electron, and 18 more.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: changed
Confidentiality: none
Integrity: high
Availability: none
Weaknesses: CWE-501NVD-CWE-Other

Metadata

Primary Vendor: ELECTRONJS
Published: 7/7/2020
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

electronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electron

Remediation Guidance

Executive Summary

Cite this page

CVE-2020-4077. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2020-4077

View on NIST NVD

CVE-2020-4077 vulnerability