CVE-2025-20736

{
  "id": "CVE-2025-20736",
  "sourceIdentifier": "[email protected]",
  "published": "2025-11-04T07:15:40.977",
  "lastModified": "2026-10-18T21:10:00.120",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: WCNCR00435347; Issue ID: MSV-4049."
    },
    {
      "lang": "es",
      "value": "En el controlador de AP WLAN, existe una posible escritura fuera de límites debido a una comprobación de límites incorrecta. Esto podría conducir a una escalada local de privilegios si un actor malintencionado ya ha obtenido los privilegios del Sistema. No se necesita interacción del usuario para la explotación. ID del parche: WCNCR00435347; ID del problema: MSV-4049."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "MediaTek, Inc.",
          "product": "MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986",
          "versions": [
            {
              "version": "SDK release 7.6.7.2 and before / openWRT 19.07, 21.02",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
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          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 0.8,
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      }
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        "ssvcData": {
          "timestamp": "2025-11-05T04:55:35.653762Z",
          "id": "CVE-2025-20736",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
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      "source": "[email protected]",
      "type": "Secondary",
      "description": [
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        }
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    {
      "source": "[email protected]",
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        }
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  "references": [
    {
      "url": "https://corp.mediatek.com/product-security-bulletin/November-2025",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}