🛡️ CVE-2021-40904 on Ubuntu — check-mk

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

The web management console of CheckMK Raw Edition (versions 1.5.0 to 1.6.0) allows a misconfiguration of the web-app Dokuwiki (installed by default), which allows embedded php code. As a result, remote code execution is achieved. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session by a user with the role of administrator.

Distribution advisory

This page covers CVE-2021-40904 as tracked by Ubuntu, for the package check-mk. No fixed version has been recorded for this distribution yet.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

UBUNTU-CVE-2021-40904 is recorded against 1 package.

  • check-mk

Timeline and source

Published on 25 March 2022 and last revised on 24 October 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
github.com (Report)
www.cve.org (Report)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2022-03-25
Updated 2026-06-08
Modified 2025-10-24
Fix URL N/A

Affected Packages

Software From version Fixed in
check-mk — —

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