7.5

CVE-2026-23930: zabbix

CVSS: 7.5v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-23930DEBIAN-CVE-2026-23930
Published 18-08-2026Last modified 18-08-2026
Open JSON

Vulnerability summary

CVE-2026-23930 is a high (CVSS 7.5) vulnerability in zabbix. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 33% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.40%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-08-2026
    PublishedVulnerability first disclosed.
  2. 18-08-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.40%

Chance of exploitation in the next 30 days

Percentile

33%

Versus all other CVEs

30-day change

+0.05 pp

From 0.36% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.40%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • zabbixAll versions (No fix recorded) | < 1:7.0.27+dfsg-1
Ubuntu1 product
  • zabbixAll versions (No fix recorded)
Zabbix1 product
  • zabbix≥ 6.0.0, ≤ 6.0.46 | ≥ 7.0.0, ≤ 7.0.26 | ≥ 7.4.0, ≤ 7.4.10 | ≥ 6.0.0, < 6.0.47 | ≥ 7.0.0, < 7.0.27 | ≥ 7.4.0, < 7.4.11

3 vendors · 3 products

References

4 links