9.9

CVE-2020-4077: electron Trust Boundary Violation

CVSS: 9.9v3.1CriticalModified
AliasesGHSA-h9jc-284h-533g
Published 07-07-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-4077 is a critical (CVSS 9.9) Trust Boundary Violation vulnerability in electron. EPSS estimates a 1.00% chance of exploitation in the next 30 days, higher than 62.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.9/10
010
Critical · v3.1 (NVD)
EPSS score
1.00%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 07-07-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.00%

Chance of exploitation in the next 30 days

Percentile

62%

Versus all other CVEs

30-day change

0.00 pp

From 1.00% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.00%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Electron1 product
  • electron≥ 9.0.0-beta.0, ≤ 9.0.0-beta.20 | ≥ 8.0.0, < 8.2.4 | < 7.2.4
Electronjs1 product
  • electronEOL≥ 7.0.0, < 7.2.4 | ≥ 8.0.0, < 8.2.4 | 9.0.0 | 9.0.0:beta1 | 9.0.0:beta10 | 9.0.0:beta11 | 9.0.0:beta12 | 9.0.0:beta13 | 9.0.0:beta14 | 9.0.0:beta15 | 9.0.0:beta16 | 9.0.0:beta17 | 9.0.0:beta18 | 9.0.0:beta19 | 9.0.0:beta2 | 9.0.0:beta20 | 9.0.0:beta3 | 9.0.0:beta4 | 9.0.0:beta5 | 9.0.0:beta6 | 9.0.0:beta7 | 9.0.0:beta8 | 9.0.0:beta9
Npm1 product
  • electron< 7.2.4 | ≥ 8.0.0, < 8.2.4

3 vendors · 3 products

References

4 links