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CVE-2026-33754

Estado: AnalizadaMedia (6.5)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Wazuh — Wazuh

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-33754",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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          "id": "CVE-2026-33754",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-07-17T12:16:09.606354Z"
        }
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    "cvssMetricV31": [
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          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
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      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "wazuh",
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              "version": ">= 3.9.0, < 4.14.5"
            }
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  ],
  "published": "2026-07-17T00:16:25.383",
  "references": [
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    },
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    }
  ],
  "lastModified": "2026-07-20T13:31:37.120",
  "configurations": [
    {
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          "cpeMatch": [
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