---
id: CVE-2026-112335
title: Wazuh Agent 1.0.0 before 4.14.9 Stack Buffer Overflow via read_snortfull
summary: >-
  Wazuh agent from 1.0.0 before 4.14.9 contains a stack-based buffer overflow in
  the logcollector snort-full log reader that miscalculates remaining buffer
  space in read_snortfull(). Attackers who write crafted multi-line content to a
  moni…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-121
vendor: wazuh
product: wazuh
affected:
  - wazuh >= 1.0.0 < 4.14.9
published: '2026-11-06'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T15:00:43.252Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112335'
references:
  - url: 'https://github.com/wazuh/wazuh/security/advisories/GHSA-3gq8-gg8f-5h8h'
    label: GitHub Security Advisory (GHSA-3gq8-gg8f-5h8h)
  - url: 'https://github.com/wazuh/wazuh/releases/tag/v4.14.9'
    label: wazuh v4.14.9 Release Notes
  - url: >-
      https://www.vulncheck.com/advisories/wazuh-agent-1.0.0-before-4.14.9-stack-buffer-overflow-via-read-snortfull
    label: >-
      VulnCheck Advisory: Wazuh Agent 1.0.0 before 4.14.9 Stack Buffer Overflow
      via read_snortfull
tags:
  - cve.org
ingestedAt: '2026-11-06T15:54:04.089Z'
epss: 0.00134
epssPercentile: 0.02898
---

## Overview

Wazuh agent from 1.0.0 before 4.14.9 contains a stack-based buffer overflow in the logcollector snort-full log reader that miscalculates remaining buffer space in read_snortfull(). Attackers who write crafted multi-line content to a monitored snort-full log can overflow the 65,280-byte stack buffer, crashing the agent or overwriting an SEH handler on 32-bit Windows agents running as SYSTEM.

## Affected

- `wazuh >= 1.0.0 < 4.14.9`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.