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CVE-2025-64996

Overly broad file permissions in the mk_inotify plugin allows reading and manipulating the plugin's output

Medium4.8EPSS 0.11%
Published
Updated
Reserved
Assigned by
Checkmk

Description

In Checkmk versions prior to 2.4.0p16, 2.3.0p41, and all versions of 2.2.0 and older, the mk_inotify plugin creates world-readable and writable files, allowing any local user on the system to read the plugin's output and manipulate it, potentially leading to unauthorized access to or modification of monitoring data.

Scores

CVSS scores of CVE-2025-64996, by who scored it
Scored byCVSSScoreVector
CheckmkCNA (assigner)4.0Medium4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N
NVDNVD · Analyzed4.0Medium4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (exploitation in 30 days)
0.11% · top 99% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.8.

Weakness

Affected products

  • Checkmk GmbH · Checkmk

    • affected 2.4.0 – < 2.4.0p16
    • affected 2.3.0 – < 2.3.0p41
    • affected 2.2.0
    • affected 2.1.0

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

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Record last updated .