CVE-2026-23930 | BDVDB-2026-360786 Detail

ZabbixZabbix

Description#

An unauthenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend popup.testtriggerexpr action, leading to potential denial of service.

Impact#

CAPEC-490: Amplification

Weaknesses#

CWE-405 Asymmetric Resource Consumption (Amplification)

References#

https://support.zabbix.com/browse/ZBX-28069

Exploit#

No public exploit known

History#

Version 12026-08-18Record published in the CVE List.

Published

Published: 2026-08-18
Last modified: 2026-08-18

Vendor information

Vendor: Zabbix
Product: Zabbix

All Zabbix vulnerabilities

Score

5.3 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 50.5.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 6.0.0 and <= 6.0.46
Fixed
Not stated
Vulnerable
Not stated
Fixed
6.0.47
Vulnerable
>= 7.0.0 and <= 7.0.26
Fixed
Not stated
Vulnerable
Not stated
Fixed
7.0.27
Vulnerable
>= 7.4.0 and <= 7.4.10
Fixed
Not stated
Vulnerable
Not stated
Fixed
7.4.11

Scoring System

CVSS v4.0

5.3 Medium

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

Metric breakdown
Attack Vector	Adjacent
Attack Complexity	Low
Attack Requirements	None
Privileges Required	None
User Interaction	None
Vulnerable System Confidentiality	None
Vulnerable System Integrity	None
Vulnerable System Availability	Low
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).