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CVE-2026-3609

Estado: ModificadaAlta (7.8)—

Wellbia's XIGNCODE3 xhunter1.sys kernel driver, version 10.0.10011.16384 through 2023.12.7.78, privilege escalation vulnerability provides access to the IRP_MJ_WRITE command interface, which allows any user process to request a PROCESS_ALL_ACCESS.

Note: KVE 2023-5589 (https://krcert.or.kr) was initially issued for version 10.0.10011.16384, but the vulnerability was not fully remediated and remains in version 2023.12.7.78.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vector AV:L/PR:L/UI:N indica escalada local sin interacción (T1068). El acceso a PROCESS_ALL_ACCESS en kernel driver permite ejecución de código con privilegios elevados (T1059, T1548).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution PreventionPrivileged Account ManagementAuditUpdate SoftwareUser Account ManagementThreat Intelligence Program

Tecnologías afectadas (1)

Wellbia — Xigncode3

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-3609",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-3609",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-13T12:35:38.266419Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "LOCAL",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
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          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
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        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "Wellbia",
          "product": "XIGNCODE3",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.10011.16384",
              "versionType": "custom",
              "lessThanOrEqual": "2023.12.7.78"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-05-11T18:16:33.560",
  "references": [
    {
      "url": "https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-2026-3609/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "https://blacksnufkin.github.io/posts/Hunting-the-Hunter/",
      "source": "cret@cert.org"
    },
    {
      "url": "https://crcert.or.kr",
      "tags": [
        "Broken Link"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-2026-3609/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Wellbia's XIGNCODE3 xhunter1.sys kernel driver, version 10.0.10011.16384 through 2023.12.7.78, privilege escalation vulnerability provides access to the IRP_MJ_WRITE command interface, which allows any user process to request a PROCESS_ALL_ACCESS.\r\n\r\nNote: KVE 2023-5589 (https://krcert.or.kr) was initially issued for version 10.0.10011.16384, but the vulnerability was not fully remediated and remains in version 2023.12.7.78."
    }
  ],
  "lastModified": "2026-08-05T16:16:56.290",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wellbia:xigncode3:10.0.10011.16384:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "413C1845-5509-4DB1-9BA7-FF1CF00E7365"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "cret@cert.org"
}