PT-2026-60610 · Wazuh · Wazuh

CVE-2026-40106 · Publicado 2026-07-16 · Atualizado 2026-07-17

NVD

CVSS v3.1

4.7

Média

Vetor base

AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Wazuh is a free and open source platform used for threat prevention, detection, and response. Versions 4.6.0 and above prior to 4.14.5 contain a heap-based buffer overflow vulnerability in the syscheck component of the Wazuh agent for Windows. When expanding registry paths containing wildcards (* or ?), the agent allocates a fixed-size heap buffer of 256 bytes (OS SIZE 256). By creating a registry subkey with a maximum allowed length (255 characters) inside a monitored path, a low-privileged local attacker can force an out-of-bounds write during string concatenation. Since wazuh-agent.exe runs as NT AUTHORITYSYSTEM, this can lead to a silent Denial of Service (blinding the agent) or potentially Local Privilege Escalation (LPE). This issue has been fixed in version 4.14.5.

Correção

Heap Based Buffer Overflow

Enumeração de Fraquezas

CWE-122

Identificadores relacionados

CVE-2026-40106

Produtos afetados

Wazuh

Referências · 2

• https://github.com/wazuh/wazuh/security/advisories/GHSA-qvrc-pcfc-jhqc · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-40106 · Nota de Segurança