CVE catalog

CVE-2025-64999

UBUNTU-CVE-2025-64999

[CVE catalog]

Severity
Unknown
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.17% · Oct 27, 2026

Improper neutralization of input in Checkmk versions 2.4.0 before 2.4.0p22, and 2.3.0 before 2.3.0p43 allows an attacker that can manipulate a host's check output to inject malicious JavaScript into the Synthetic Monitoring HTML logs, which can then be accessed via a crafted phishing link.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Ubuntucheck-mkpro1.2.6p5-1vulnerable
Ubuntucheck-mkpro1.2.6p12-1vulnerable
Ubuntucheck-mkpro1.2.6p12-1ubuntu0.16.04.1vulnerable
Ubuntucheck-mkpro1.2.6p12-1ubuntu0.16.04.1+esm1vulnerable
Ubuntucheck-mk18.041.2.8p16-1ubuntu0.1vulnerable
Ubuntucheck-mk18.041.2.8p16-1ubuntu0.2vulnerable

Fixed-version evidence

OpenFactory catalog packages

No matching packages in this catalog.

Observed:

References