The current version of Checkmk is 2.5.0 (as of 08/07/2026). patchletter checks the official source daily and emails you new releases.
BSI security advisories
Advisories the German BSI (CERT-Bund) published for this product. Whether your version is affected is stated in the advisory itself.
- Checkmk: Schwachstelle ermöglicht Privilegieneskalation
WID-SEC-W-2026-3801 · 9 Oct
- Checkmk: Mehrere Schwachstellen
WID-SEC-W-2026-3746 · 6 Oct
- Checkmk: Mehrere Schwachstellen
WID-SEC-W-2026-3485 · 23 Sept
- Checkmk: Schwachstelle ermöglicht Denial of Service
WID-SEC-W-2026-3192 · 22 Sept
- Checkmk: Schwachstelle ermöglicht Manipulation von Dateien
WID-SEC-W-2026-3501 · 22 Sept
- Checkmk: Mehrere Schwachstellen ermöglichen Umgehen von Sicherheitsvorkehrungen
WID-SEC-W-2026-2567 · 7 Sept
- Checkmk: Schwachstelle ermöglicht Offenlegung von Informationen
WID-SEC-W-2026-2985 · 25 Aug
- Checkmk: Schwachstelle ermöglicht Offenlegung von Informationen
WID-SEC-W-2026-2875 · 21 Aug
Checkmk at a glance
Checkmk is a comprehensive monitoring platform (from tribe29/Checkmk, Munich) for infrastructure and applications, available as Raw and Enterprise editions. Checkmk ships regular releases plus patch versions; as a monitoring system with broad visibility, it deserves hardening and timely updates.
For admins updates run through the site management (omd); back up the site before larger jumps and read the werks (change notes), since check plug-ins and rules can change. Multiple sites and versions can coexist on one server, which eases staged upgrades. The web interface and the monitored systems' credentials make it security-relevant — keep it on the management network behind authentication. Verify checks and notifications after updating. Track the version and its support status.
Support cycles (endoflife.date)
| Cycle | Latest version | Status |
|---|---|---|
| 2.5 | 2.5.0p12 | EOL 28 Apr 28 |
| 2.4 | – | EOL 6 Nov 27 |
| 2.3 | – | EOL in 19 days |
| 2.2 | – | End of Life |
Version history & changelog · as detected by patchletter
| Version | Channel | Date | Notes |
|---|---|---|---|
| 2.5.0 | STABLE | 08/07/2026 | Release notes → |
Frequently asked questions
- What is the latest version of Checkmk?
- Checkmk 2.5.0, released 08/07/2026. patchletter checks the vendor's official source daily for new releases.
- Where can I find the Checkmk release notes?
- The version history above links to the vendor's official release notes where the vendor publishes them. patchletter deliberately stores no vendor full texts.
- How do I get notified about new Checkmk updates?
- Tick Checkmk off in the catalogue and leave your address. From then on new versions go out by email — one at a time, or bundled in the daily or weekly digest.
An email as soon as a new Checkmk version ships
We reconcile the vendor source daily. When a new version appears, it lands in your inbox right away or bundled as a digest. The update email is free and ends with one click. Alerts about vulnerabilities and end of support are part of patchletter Pro.
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[](https://patchletter.com/en/software/checkmk)https://patchletter.com/badge/checkmk.svgAlso available: ?v=eol (end of support) and ?v=cve (actively exploited).
