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OpenAdvisories
Medium · 5.9 Public exploit CVE-2021-27568 EUVD-2021-1405GHSA-v528-7hrm-frqp

Improper Check for Unusual or Exceptional Conditions in json-smart

Published Feb 23, 2021 · Updated Oct 8, 2026 · Assigned by mitre

Package: net.minidev:json-smart Package: net.minidev:json-smart-mini Ecosystem: Maven

Description

An issue was discovered in netplex json-smart-v1 through 2015-10-23 and json-smart-v2 through 2.4. An exception is thrown from a function, but it is not caught, as demonstrated by NumberFormatException. When it is not caught, it may cause programs using the library to crash or expose sensitive information.

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
Maven net.minidev:json-smart < 1.3.2 1.3.2 GHSA-v528-7hrm-frqp
Maven net.minidev:json-smart >= 2.4.0, < 2.4.1 2.4.1 GHSA-v528-7hrm-frqp
Maven net.minidev:json-smart >= 2.0.0, < 2.3.1 2.3.1 GHSA-v528-7hrm-frqp
Maven net.minidev:json-smart-mini < 1.3.2 1.3.2 GHSA-v528-7hrm-frqp

Advisories 2

References