CVE-2023-29451

Denial of service caused by a bug in the JSON parser

Description

Specially crafted string can cause a buffer overrun in the JSON parser library leading to a crash of the Zabbix Server or a Zabbix Proxy.

Categories

4.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.10%
Vendor Advisory zabbix.com
Affected: Zabbix Zabbix
Published at:
Updated at:

References

Link Tags
https://support.zabbix.com/browse/ZBX-22587 vendor advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00027.html

Frequently Asked Questions

What is the severity of CVE-2023-29451?
CVE-2023-29451 has been scored as a medium severity vulnerability.
How to fix CVE-2023-29451?
To fix CVE-2023-29451, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-29451 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-29451 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-29451?
CVE-2023-29451 affects Zabbix Zabbix.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.