CVE-2021-30218

Name: CVE-2021-30218
Creator: NVD / NIST
Published: 2021-04-29T15:15:11.05+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.75%

Last modified Jun 17, 2026

CVE-2021-30218 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. samurai 1.2 has a NULL pointer dereference in writefile() in util.c via a crafted build file.. EPSS estimates a 0.75% chance of exploitation in the next 30 days.

Description

samurai 1.2 has a NULL pointer dereference in writefile() in util.c via a crafted build file.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.75%

50.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Samurai Project	Samurai	1.2

References

https://github.com/michaelforney/samurai/commit/e84b6d99c85043fa1ba54851ee500540ec206918Patch, Third Party Advisory
https://github.com/michaelforney/samurai/issues/67Exploit, Issue Tracking, Third Party Advisory
https://github.com/michaelforney/samurai/commit/e84b6d99c85043fa1ba54851ee500540ec206918Patch, Third Party Advisory
https://github.com/michaelforney/samurai/issues/67Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Apr 29, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-30218?

samurai 1.2 has a NULL pointer dereference in writefile() in util.c via a crafted build file.

How severe is CVE-2021-30218?

CVE-2021-30218 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.

How do I fix CVE-2021-30218?

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-2021-30218?

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

Scan your code now

Source: NVD / NIST