Denial of service against webconf

published 2023-05-15 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-26481

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits: 0; none known

Denial of service in Webconf in Tribe29 Checkmk Appliance before 1.6.5.

Patch / fix

fixed in 1

Tribe29 Checkmk Appliance 1.6.5

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 21 mo ago (2025-01-23)

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Tribe29 Checkmk Appliance

Classification

Weakness

CWE-412 Unrestricted Externally Accessible Lock
CWE-667 Improper Locking

References

checkmk.com /werk/9526
mitigation, vendor-advisory

Sources

CVE List CVE-2023-22318
NVD CVE-2023-22318

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary