Is CVE-2020-4076 in the CISA KEV catalog?

No. CVE-2020-4076 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-4076?

CVE-2020-4076 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2020-4076?

CVE-2020-4076 has an EPSS score of 0.37% (29th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-4076?

Upgrade electron to 8.2.4 or later.

CVE & CISA-KEV Catalog

CVE-2020-4076

HIGH

7.8

CVSS v3

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

CWE-501

How to fix

Remediation Available

electronNVD

Affected:>= 8.0.0, < 8.2.4Fixed in:8.2.4CVE-2020-4076derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.37%probability of exploitation in 30 days

29thpercentile

Low risk: more likely to be exploited than 29% of all known CVEs.

References

Vendor Advisory1

electronjs.org

Third-Party Advisory1

github.com

Embed a live status badge for CVE-2020-4076

Markdown

[![CVE-2020-4076](https://tridentstack.com/cve/badge/CVE-2020-4076.svg)](https://tridentstack.com/cve/CVE-2020-4076)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-4076"><img src="https://tridentstack.com/cve/badge/CVE-2020-4076.svg" alt="CVE-2020-4076"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.