CVE-2023-30421

Name: CVE-2023-30421
Creator: NVD / NIST
Published: 2025-04-19T22:15:14.24+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.9/10EPSS 0.13%

Last modified Jun 17, 2026

CVE-2023-30421 is a low-severity vulnerability rated 2.9/10 on the CVSS scale. mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain digit strings such as 8891110122900e913013935755114.. EPSS estimates a 0.13% chance of exploitation in the next 30 days.

Description

mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain digit strings such as 8891110122900e913013935755114.

Metrics

CVSS 3.1

2.9/10

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

EPSS Probability

0.13%

2.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-407

References

Timeline

Published: Apr 19, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2023-30421?

mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain digit strings such as 8891110122900e913013935755114.

How severe is CVE-2023-30421?

CVE-2023-30421 has a CVSS score of 2.9/10 (LOW severity). The EPSS model estimates a 0.13% probability of exploitation in the next 30 days.

How do I fix CVE-2023-30421?

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-2023-30421?

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

Scan your code now

Source: NVD / NIST