CVE-2023-23549 json
DoS via long hostnames
published 2023-11-15 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-27649
- cvss
- 2.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
Improper Input Validation in Checkmk <2.2.0p15, <2.1.0p37, <=2.0.0p39 allows priviledged attackers to cause partial denial of service of the UI via too long hostnames.
Patch / fix
- Checkmk GmbH Checkmk 2.1.0p37, 2.2.0p15
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L |
| NVD | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L |
Affected products
- Checkmk GmbH Checkmk
Classification
- Weakness
-
- CWE-1284 Improper Validation of Specified Quantity in Input
References
-
checkmk.com
/werk/16219
vendor-advisory
Sources
- CVE List CVE-2023-23549
- NVD CVE-2023-23549
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