Summary
generated automatically from NVD dataWazuh versions from 3.9.0 before 4.14.8 have an arbitrary file overwrite flaw in MasterHandler.process_files_from_worker, tied to missing authorization (CWE-862). An attacker controlling a cluster worker can use a trailing-slash basename bypass and the lack of extra_valid enforcement to overwrite protected master files such as ossec.conf and agent.conf. This can lead to root remote code execution across the manager and every agent, and the flaw is rated CRITICAL with a CVSS v3.1 score of 9.1.
NVD description
Wazuh versions from 3.9.0 before 4.14.8 contain an arbitrary file overwrite vulnerability in MasterHandler.process_files_from_worker allowing a cluster worker to overwrite protected master files. Attackers controlling a worker can use a trailing-slash basename bypass and missing extra_valid enforcement to overwrite ossec.conf and agent.conf, achieving root remote code execution across the manager and every agent.
EPSS · FIRST.org
0.55%probability of exploitation in the next 30 days
Higher than 44% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 13 oct. 2026
- Updated
- 16 oct. 2026
- Status
- Awaiting Analysis
- Source
- disclosure@vulncheck.com
Weaknesses (CWE)
References (4)
Similar CVEs
Other vulnerabilities of type CWE-862
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