Vulnerability in Mjson Project
CVE-2023-30421
mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain digit strings such as 8891110122900e913013935755114.
EPSS: 0.001 (4.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Mjson Project — versions 1.2.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2023-30421?
- CVE-2023-30421 is a low-severity vulnerability in Mjson Project, classified under Inefficient Algorithmic Complexity. CVSS score: 2.9/10. Published 2025-04-19.
- How severe is CVE-2023-30421?
- Low severity. CVSS v3 base score is 2.9 out of 10.
- Is CVE-2023-30421 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.