---
id: "CVE-2026-112334"
page: "https://infrastack.ai/live/CVE-2026-112334"
kind: "vulnerability"
aliases: ["CVE-2026-112334"]
title: "Wazuh: active-response config overflow in wazuh-execd corrupts root memory"
severity: "medium"
cvss: 6.9
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "self-hosted", "siem", "wazuh"]
not_affected_if: ["no-active-response", "restricted-config-access", "wazuh-4.14.9-or-later"]
published_at: "2026-11-06T15:17:07+00:00"
first_seen_at: "2026-11-06T15:42:43+00:00"
updated_at: "2026-11-06T15:44:25+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112334", "first_seen_at": "2026-11-06T15:42:43+00:00"}]
exploit_sources: []
---

# Wazuh: active-response config overflow in wazuh-execd corrupts root memory

Link for people: https://infrastack.ai/live/CVE-2026-112334 (this .md is for agents)

Wazuh before 4.14.9 has an out-of-bounds write in wazuh-execd: more than 64 active-response commands in ossec.conf overflow an array in ReadExecConfig(). An attacker who already controls the manager configuration can corrupt root process memory and crash Active Response across the fleet.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the Wazuh manager version: `/var/ossec/bin/wazuh-control info` or the installed package version
- Review `ossec.conf` active-response blocks for an unusually large number of command entries
- Check the Wazuh release notes linked from the advisory for the list of affected builds

## Fix

- Wazuh: move to `4.14.9` or later

## Timeline

- 2026-11-06T15:42:43+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112334

## Documents

- [advisory] Vendor advisory: github.com https://github.com/wazuh/wazuh/security/advisories/GHSA-f4pj-j296-jwp2
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/wazuh-1.0.0-before-4.14.9-out-of-bounds-write-in-wazuh-execd-via-ar-conf
- [fix] Release notes: github.com https://github.com/wazuh/wazuh/releases/tag/v4.14.9

## From the sources

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.

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