CVE-2021-43614

Estado: En análisisMedia (6.7)—

Error in handling the PlatformLangCodes UEFI variable could cause a buffer overflow, leading to resource exhaustion and failure.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:L
Puntuación base: 6.7

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.11%
Percentil entre todas las CVEs puntuadas: 1
Fecha de la puntuación: 6/10/2026

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)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

IBM — Uefi^AI

CWE

CWE-120

Referencias

https://www.insyde.com/security-pledge/sa-2022026/

JSON original (NVD)

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{
  "id": "CVE-2021-43614",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-43614",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-03T13:13:14.144238Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "8338d8cb-57f7-4252-abc0-96fd13e98d21",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.7,
          "attackVector": "PHYSICAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:L",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 0.2
      }
    ]
  },
  "affected": [
    {
      "source": "8338d8cb-57f7-4252-abc0-96fd13e98d21",
      "affectedData": [
        {
          "vendor": "Insyde Software",
          "product": "InsydeH2O",
          "versions": [
            {
              "status": "affected",
              "version": "InsydeH2OUvePkg",
              "lessThan": "01.01.04.0008",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x86"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-09-03T13:04:12.283",
  "references": [
    {
      "url": "https://www.insyde.com/security-pledge/sa-2022026/",
      "source": "8338d8cb-57f7-4252-abc0-96fd13e98d21"
    }
  ],
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
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      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Error in handling the PlatformLangCodes UEFI variable could cause a buffer overflow, leading to resource exhaustion and failure."
    }
  ],
  "lastModified": "2026-09-03T18:09:03.317",
  "sourceIdentifier": "8338d8cb-57f7-4252-abc0-96fd13e98d21"
}