6.5

CVE-2025-49643: zabbix frontend

CVSS: 6.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2025-49643DEBIAN-CVE-2025-49643
Published 01-12-2025Last modified 01-12-2025
Open JSON

Vulnerability summary

CVE-2025-49643 is a medium (CVSS 6.5) vulnerability in zabbix frontend. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 25.9% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.34%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 01-12-2025
    PublishedVulnerability first disclosed.
  2. 01-12-2025
    Last modifiedVulnerability information updated.

Description

An authenticated Zabbix user (including Guest) is able to cause disproportionate CPU load on the webserver by sending specially crafted parameters to /imgstore.php, leading to potential denial of service.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.34%

Chance of exploitation in the next 30 days

Percentile

26%

Versus all other CVEs

30-day change

0.00 pp

From 0.34% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.34%

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

Zabbix2 products
  • frontend≥ 6.0.0, < 6.0.42 | ≥ 7.0.0, < 7.0.19 | ≥ 7.2.0, < 7.2.13 | ≥ 7.4.0, < 7.4.3
  • zabbix≥ 6.0.0, ≤ 6.0.41 | ≥ 7.0.0, ≤ 7.0.18 | ≥ 7.2.0, ≤ 7.2.12 | ≥ 7.4.0, ≤ 7.4.2
Debian1 product
  • zabbixAll versions (No fix recorded) | < 1:7.0.22+dfsg-1~deb13u1 | < 1:7.0.22+dfsg-1
Ubuntu1 product
  • zabbixAll versions (No fix recorded)

3 vendors · 4 products

References

4 links