CVE-2021-33441
MEDIUMCVSS 5.5/10EPSS 0.30%
Last modified
CVE-2021-33441 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An issue was discovered in mjs (mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There is NULL pointer dereference in exec_expr() in mjs.c.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
Description
An issue was discovered in mjs (mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There is NULL pointer dereference in exec_expr() in mjs.c.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cesanta | Mjs | < 2.20.0 |
References
- https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6dThird Party Advisory
- https://github.com/cesanta/mjs/issues/165Exploit, Issue Tracking, Patch, Third Party Advisory
- https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6dThird Party Advisory
- https://github.com/cesanta/mjs/issues/165Exploit, Issue Tracking, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-33441?
An issue was discovered in mjs (mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There is NULL pointer dereference in exec_expr() in mjs.c.
How severe is CVE-2021-33441?
CVE-2021-33441 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.
How do I fix CVE-2021-33441?
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-2021-33441?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST