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CVE-2023-30421

Quick assessment

Affected
mjson project mjson
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

mJson是Borislav Iordanov个人开发者的一个极其轻量级的 Java JSON 库。 mJson 1.2.7版本存在安全漏洞，该漏洞源于处理特定数字字符串时可能导致拒绝服务。

CVSS 2.9 · Low EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2023-30421

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain digit strings such as 8891110122900e913013935755114.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
算法复杂性
Source: CVE Program / CVE List V5
Vulnerability Title
mJson 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
mJson是Borislav Iordanov个人开发者的一个极其轻量级的 Java JSON 库。 mJson 1.2.7版本存在安全漏洞，该漏洞源于处理特定数字字符串时可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
mjson project mjson 1.2.7 -

II. Public POCs for CVE-2023-30421

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2023-30421

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Proof of Concept for CVE-2023-30421 (1)

Vendor Pages for CVE-2023-30421 (1)

IV. Related Vulnerabilities

Same weakness: CWE-407