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CVE-2016-4303

Published: Sep 26, 2016Updated: May 6, 2026 Sources: CVE List NVDCWE-120
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
6.8%
Top 6.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-120

Affected Products

iperf3es
Library
Networking Infrastructure / network-management
suse package hub for suse linux enterprisenovell
On-prem
Operating Systems / linux-distro
leapopensuse
On-premOS
Operating Systems / linux-distro
opensuseopensuse
On-premOS
Operating Systems / linux-distro
debian linuxdebian
On-premOS
Operating Systems / linux-distro
esoss-projectNetworking Infrastructure
novellcommercialUSOperating Systemsaka suse novell, novell suse
opensuseoss-projectDEOperating Systemsaka opensuse
debianoss-projectGBOperating Systemsaka debian gnu/linux
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

http://blog.talosintel.com/2016/06/esnet-vulnerability.html
blog.talosintel.com
http://lists.opensuse.org/opensuse-updates/2016-08/msg00082.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-updates/2016-08/msg00090.html
lists.opensuse.org
and 5 more references View all →

Timeline

Published
Sep 26, 2016
Last Updated
May 6, 2026

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