CVE-2023-30421
mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain...
mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain digit strings such as 8891110122900e913013935755114.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain digit strings such as 8891110122900e913013935755114.
- Record
CVE-2023-30421- CVSS 3.1
- 2.9 Low
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-407
- Updated
- 2026-11-02
EUVDEUVD-2023-34841
mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain digit strings such as 8891110122900e913013935755114.
- Record
EUVD-2023-34841- CVSS 3.1
- 2.9 Low
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-rqfj-9wmv-vpgp
mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain...
mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain digit strings such as 8891110122900e913013935755114.
- Record
GHSA-rqfj-9wmv-vpgp- CVSS 3.1
- 2.9 Low
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-407
- Updated
- 2026-11-02
NVD
mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain digit strings such as 8891110122900e913013935755114.
- Record
CVE-2023-30421- CVSS 3.1
- 2.9 Low
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-407
- Updated
- 2026-11-02
OSV
mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain digit strings such as 8891110122900e913013935755114.
- Record
CVE-2023-30421- CVSS 3.1
- 2.9 Low
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-407
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-30421 is a low vulnerability (CVSS 2.9) in Mjson Project Mjson, published April 19, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.16%, the 4th percentile. No source names a fixed version.