CVE-2021-41392

Name: CVE-2021-41392
Creator: NVD / NIST
Published: 2021-09-17T22:15:08.163+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.68%

Last modified Jun 17, 2026

CVE-2021-41392 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. static/main-preload.js in Boost Note through 0.22.0 allows remote command execution. A remote attacker may send a crafted IPC message to the exposed vulnerable ipcRenderer IPC interface, which invokes the dangerous openExternal Electron API.. EPSS estimates a 2.68% chance of exploitation in the next 30 days.

Description

static/main-preload.js in Boost Note through 0.22.0 allows remote command execution. A remote attacker may send a crafted IPC message to the exposed vulnerable ipcRenderer IPC interface, which invokes the dangerous openExternal Electron API.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.68%

83.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-74

Affected Software

Vendor	Product	Versions
Boostnote	Boostnote	<= 0.22.0

References

https://github.com/BoostIO/BoostNote-App/issues/856Exploit, Issue Tracking, Third Party Advisory
https://github.com/BoostIO/BoostNote-App/issues/856Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Sep 17, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41392?

How severe is CVE-2021-41392?

CVE-2021-41392 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.68% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41392?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41392?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST