What is CVE-2020-4077?

CVE-2020-4077 is a high-severity vulnerability in Electron, classified under Trust Boundary Violation. CVSS score: 7.7/10. Published 2020-07-07.

How severe is CVE-2020-4077?

High severity. CVSS v3 base score is 7.7 out of 10.

Is CVE-2020-4077 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Electron

CVE-2020-4077

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…

EPSS: 0.004 (63.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N.

Affected products

Electron — versions >= 9.0.0-beta.0, <= 9.0.0-beta.20, >= 8.0.0, < 8.2.4, < 7.2.4

Weakness classification (CWE)

CWE-501 — Trust Boundary Violation

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

github.com/electron/electron/security/advisories/GHSA-h9jc-284h-533g (x_refsource_CONFIRM)
www.electronjs.org/releases/stable (x_refsource_MISC)

Frequently asked questions

What is CVE-2020-4077?: CVE-2020-4077 is a high-severity vulnerability in Electron, classified under Trust Boundary Violation. CVSS score: 7.7/10. Published 2020-07-07.
How severe is CVE-2020-4077?: High severity. CVSS v3 base score is 7.7 out of 10.
Is CVE-2020-4077 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.