CVE-2016-4303
high-risk
Published 2016-09-26
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.
Do I need to act?
~
5.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (5)
References (16)
Third Party Advisory
https://raw.githubusercontent.com/esnet/security/master/cve-2016-4303/esnet-seca...
Third Party Advisory
https://raw.githubusercontent.com/esnet/security/master/cve-2016-4303/esnet-seca...
53
/ 100
high-risk
Severity
32/34 · Critical
Exploitability
9/34 · Low
Exposure
12/34 · Low