CVE-2023-2020

MEDIUMCVSS 4.3

4.3

Insufficient permission checks in the REST API in Tribe29 Checkmk <= 2.1.0p27 and <= 2.2.0b4 (beta) allow unauthorized users to schedule downtimes for any host.

CVSS v3: 4.3
EG Score: —
EPSS: —
KEV: Not listed

Published

April 18, 2023

Last Modified

November 21, 2024

References (2)

security@checkmkhttps://checkmk.com/werk/13981
af854a3a-2127-422b-91ae-364da2661108https://checkmk.com/werk/13981

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 02:51 UTCEG score recompute
2026-05-25 02:51 UTCGHSA enrichment

Frequently asked(4)

What is CVE-2023-2020?

CVE-2023-2020 is a medium vulnerability published on April 18, 2023. Insufficient permission checks in the REST API in Tribe29 Checkmk <= 2.1.0p27 and <= 2.2.0b4 (beta) allow unauthorized users to schedule downtimes for any host.

When was CVE-2023-2020 disclosed?

CVE-2023-2020 was first published in the National Vulnerability Database on April 18, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

What is the CVSS score of CVE-2023-2020?

CVE-2023-2020 has a CVSS v3 base score of 4.3 (NVD).

How do I remediate CVE-2023-2020?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-2020, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-2020

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CVE-2023-2020

📅 Published

🔄 Last Modified

🔗 References (2)