What is CVE-2025-61789?

CVE-2025-61789 is a medium-severity vulnerability in Icinga Db Web, classified under Observable Response Discrepancy. CVSS score: 5.3/10. Published 2025-10-16.

How severe is CVE-2025-61789?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Icinga Db Web

CVE-2025-61789

Icinga DB Web provides a graphical interface for Icinga monitoring. Before 1.1.4 and 1.2.3, an authorized user with access to Icinga DB Web, can use a custom variable in a filter that is either protected by icingadb/protect/variables or hidden by icingadb/denylist/variables, to guess values assigned to it. Versions 1.1.4 and 1.2.3 respond with an error if such a custom variable is used.

Published 2025-10-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (27.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Affected products

Icinga Db Web
Icinga Icingadb-Web — versions < 1.1.4, >= 1.2.0, < 1.2.3

Weakness classification (CWE)

CWE-204 — Observable Response Discrepancy

References

github.com/Icinga/icingadb-web/security/advisories/GHSA-w57j-28jc-8429 (Patch, Vendor Advisory)
github.com/Icinga/icingadb-web/commit/5e982dad40ec379075307ab1693580138e675b18 (Patch)

Frequently asked questions

What is CVE-2025-61789?: CVE-2025-61789 is a medium-severity vulnerability in Icinga Db Web, classified under Observable Response Discrepancy. CVSS score: 5.3/10. Published 2025-10-16.
How severe is CVE-2025-61789?: Medium severity. CVSS v3 base score is 5.3 out of 10.