What is CVE-2023-22348?

CVE-2023-22348 is a medium-severity vulnerability in Checkmk, classified under Improper Authorization. CVSS score: 4.3/10. Published 2023-05-17.

How severe is CVE-2023-22348?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Checkmk

CVE-2023-22348

Improper Authorization in RestAPI in Checkmk GmbH's Checkmk versions <2.1.0p28 and <2.2.0b8 allows remote authenticated users to read arbitrary host_configs.

Published 2023-05-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (46.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

Checkmk — versions 2.1.0, 2.2.0
Checkmk Gmbh — versions 2.2.0, 2.1.0
Tribe29 Checkmk

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

checkmk.com/werk/13982 (Vendor Advisory)

Frequently asked questions

What is CVE-2023-22348?: CVE-2023-22348 is a medium-severity vulnerability in Checkmk, classified under Improper Authorization. CVSS score: 4.3/10. Published 2023-05-17.
How severe is CVE-2023-22348?: Medium severity. CVSS v3 base score is 4.3 out of 10.