CVE-2021-46519: Buffer Overflow

Published Jan 27, 2022
·
Updated

Cesanta MJS v2.20.0 was discovered to contain a heap buffer overflow via mjsarraylength at src/mjsarray.c.

Affected Software

1 affected component
Cesanta mJS=2.20.0

Event History

Jan 27, 2022
CVE Published
via MITRE·08:22 PM
Data Sourced
via MITRE·08:22 PM
Description

Frequently Asked Questions

1

What is the severity of CVE-2021-46519?

CVE-2021-46519 has been classified as a critical severity vulnerability due to the potential for remote code execution.

2

How do I fix CVE-2021-46519?

To fix CVE-2021-46519, upgrade Cesanta MJS to the latest version that addresses this vulnerability.

3

What systems are affected by CVE-2021-46519?

CVE-2021-46519 specifically affects Cesanta MJS version 2.20.0.

4

What type of vulnerability is CVE-2021-46519?

CVE-2021-46519 is a heap buffer overflow vulnerability.

5

How can CVE-2021-46519 be exploited?

CVE-2021-46519 can be exploited by an attacker through crafting input that leads to the heap buffer overflow during the array length operation.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203