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CVE-2023-46840

Estado: AnalizadaMedia (4.1)—

Incorrect placement of a preprocessor directive in source code results in logic that doesn't operate as intended when support for HVM guests is compiled out of Xen.

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 (2)

Fedoraproject — FedoraXEN — XEN

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2023-46840",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2023-46840",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-08-05T18:59:02.763689Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
          "scope": "UNCHANGED",
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 0.5
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  },
  "affected": [
    {
      "source": "security@xen.org",
      "affectedData": [
        {
          "vendor": "Xen",
          "product": "Xen",
          "versions": [
            {
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            }
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        }
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  "published": "2024-03-20T11:15:08.180",
  "references": [
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      "url": "https://xenbits.xenproject.org/xsa/advisory-450.html",
      "tags": [
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    },
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    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XLL6SQ6IKFYXLYWITYZCRV5IBRK5G35R/",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-670"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Incorrect placement of a preprocessor directive in source code results\nin logic that doesn't operate as intended when support for HVM guests is\ncompiled out of Xen.\n"
    },
    {
      "lang": "es",
      "value": "La ubicación incorrecta de una directiva de preprocesador en el código fuente da como resultado una lógica que no funciona como se espera cuando el soporte para invitados HVM se compila desde Xen."
    }
  ],
  "lastModified": "2026-06-17T06:31:44.270",
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