SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2023-29451

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.

HIGH 7.5EPSS 0.78%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.78% probability · 54th percentile
CISA KEV
Not listed
Weakness
CWE-20, CWE-787
Affected
zabbix/zabbix
Source
security@zabbix.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.