CVE-2021-33443

Public Exploit

Description

An issue was discovered in mjs (mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There is stack buffer overflow in mjs_execute() in mjs.c.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/cesanta/mjs/issues/167 patch exploit third party advisory issue tracking
https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-33443?
CVE-2021-33443 has been scored as a medium severity vulnerability.
How to fix CVE-2021-33443?
To fix CVE-2021-33443, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-33443 being actively exploited in the wild?
It is possible that CVE-2021-33443 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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