mk-oracle: Local privilege escalation via insecure Oracle Home library loading

published 2026-10-21 19d ago modified 2026-10-23 17d ago also EUVD-2026-107474

cvss: 5.2; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits: 0; none known

Local privilege escalation in Checkmk 2.5.0p14 allows a local user with write access to the Oracle client library directory of an Oracle home listed in the 'oratab' file or to the 'oratab' file itself to execute code as root if an agent has the 'mk-oracle' plugin enabled.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 18d ago (2026-10-22)

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.2	CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
CNA	4.0	5.2	CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/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

Affected products

Checkmk GmbH Checkmk

Classification

Weakness

CWE-426 Untrusted Search Path
CWE-829 Inclusion of Functionality from Untrusted Control Sphere

References

checkmk.com /werk/22621
vendor-advisory

Sources

CVE List CVE-2026-113461
NVD CVE-2026-113461

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