VULNERABILITY INTELLIGENCE

CVE-2026-33754

CVSS score6.5 MEDIUM
EPSS probability0.37%
CISA KEVNot currently listed
Published2026-07-17
Last modified2026-07-20
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions 3.9.0 and above, prior to 4.14.5, a remote attacker can trigger memory exhaustion in the cluster protocol parser by sending a crafted message header with an arbitrarily large payload length. The length is trusted before authentication/decryption and used directly to allocate memory, allowing unauthenticated denial of service of the cluster service. This issue has been fixed in version 4.14.5.

Weakness classification

  • security-advisories@github.com: CWE-400

Primary references