Buffer overflow in Wazuh
CVE-2026-112334
Wazuh from 1.0.0 before 4.14.9 contains an out-of-bounds write vulnerability in wazuh-execd that allows privileged manager-configuration attackers to corrupt root process memory via excess ar.conf entries. Attackers controlling ossec.conf active-response blocks can push over 64 commands to agents, overflowing ReadExecConfig() arrays and crashing Active Response fleet-wide.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- wazuh v4.14.9 Release Notes (release-notes)
- GitHub Security Advisory (GHSA-f4pj-j296-jwp2) (vendor-advisory)
- VulnCheck Advisory: Wazuh 1.0.0 before 4.14.9 Out-of-Bounds Write in wazuh-execd via ar.conf (third-party-advisory)
Frequently asked questions
- What is CVE-2026-112334?
- CVE-2026-112334 is a medium-severity vulnerability in Wazuh, classified under Out-of-bounds Write. CVSS score: 4.9/10. Published 2026-11-06.
- How severe is CVE-2026-112334?
- Medium severity. CVSS v3 base score is 4.9 out of 10.