Detections
Analytics

Zabbix Server 6.0.x < 6.0.47 / 7.0.x < 7.0.27 / 7.4.x < 7.4.11 DoS (ZBX-28075)

low Nessus Plugin ID 338768

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Synopsis

A monitoring application installed on the remote host is affected by a denial of service vulnerability.

Description

The version of Zabbix Server installed on the remote host is 6.0.x prior to 6.0.47, 7.0.x prior to 7.0.27, or 7.4.x prior to 7.4.11. It is, therefore, affected by a denial of service vulnerability:

 - An authenticated administrator is able to crash Zabbix server by creating specifically crafted preprocessing/script item JavaScript scripts, leading to potential denial of service. (CVE-2026-23938)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Zabbix version 6.0.47, 7.0.27, 7.4.11 or later.

See Also

https://support.zabbix.com/browse/ZBX-28075

Plugin Details

Severity: Low

ID: 338768

File Name: zabbix_ZBX-28075.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 8/21/2026

Updated: 8/24/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.65

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P

CVSS Score Source: CVE-2026-23938

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Low

Base Score: 2.1

Threat Score: 0.5

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:zabbix:zabbix_server

Required KB Items: installed_sw/Zabbix Server

Exploit Ease: No known exploits are available

Patch Publication Date: 8/18/2026

Vulnerability Publication Date: 8/18/2026

Reference Information

CVE: CVE-2026-23938

CWE: 248