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.
Published 2016-09-26 14:59:02
Updated 2025-01-15 19:12:53
Source CERT/CC
View at NVD,   CVE.org
Vulnerability category: OverflowExecute codeDenial of service

Products affected by CVE-2016-4303

Exploit prediction scoring system (EPSS) score for CVE-2016-4303

2.54%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 90 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-4303

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST

CWE ids for CVE-2016-4303

References for CVE-2016-4303

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