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Case File

CVE-2016-4303

CRITICAL · CVSS 9.8 EPSS 6.96% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2016-09-26 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2016-4303
Severity
CRITICAL
CVSS
9.8
EPSS
6.96%

Original NVD Description

The parse_string function in cjson.c in the cJSON library mishandles UTF8/16 strings, which allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a non-hex character in a JSON string, which triggers a heap-based buffer overflow.