CVE-2022-1201

Name: CVE-2022-1201
Creator: NVD / NIST
Published: 2022-04-02T08:15:06.913+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.36%

Last modified Jun 17, 2026

CVE-2022-1201 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

Description

NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.36%

28.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Mruby	Mruby	< 3.2

References

https://github.com/mruby/mruby/commit/00acae117da1b45b318dc36531a7b0021b8097aePatch, Third Party Advisory
https://huntr.dev/bounties/6f930add-c9d8-4870-ae56-d4bd8354703bExploit, Third Party Advisory
https://github.com/mruby/mruby/commit/00acae117da1b45b318dc36531a7b0021b8097aePatch, Third Party Advisory
https://huntr.dev/bounties/6f930add-c9d8-4870-ae56-d4bd8354703bExploit, Third Party Advisory

Timeline

Published: Apr 2, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-1201?

How severe is CVE-2022-1201?

CVE-2022-1201 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.

How do I fix CVE-2022-1201?

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-2022-1201?

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

Scan your code now

Source: NVD / NIST