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CVE-2025-15556

Estado: AnalizadaAlta (7.7)⚠ Explotación activa

Notepad++ versions prior to 8.8.9, when using the WinGUp updater, contain an update integrity verification vulnerability where downloaded update metadata and installers are not cryptographically verified. An attacker able to intercept or redirect update traffic can cause the updater to download and execute an attacker-controlled installer, resulting in arbitrary code execution with the privileges of the user.

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).

CISA KEV — explotada activamente

🎯 Técnicas ATT&CK

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

CVE en Notepad++ requiere interacción del usuario (UI:P) para descargar/ejecutar actualización maliciosa. Cadena de suministro (T1195.002) sin verificación criptográfica permite inyectar código. Resultado: ejecución arbitraria (T1059).

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

Update SoftwareVulnerability ScanningRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationExecution Prevention

Tecnologías afectadas (1)

Notepad-plus-plus — Notepad++

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2025-15556",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2025-15556",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "active"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-02-13T04:56:27.295409Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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    ],
    "cvssMetricV40": [
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        "type": "Secondary",
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        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
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          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
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          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  "affected": [
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      "source": "disclosure@vulncheck.com",
      "affectedData": [
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          "vendor": "notepad-plus-plus",
          "product": "notepad-plus-plus",
          "versions": [
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              "status": "affected",
              "version": "0",
              "lessThan": "8.8.9",
              "versionType": "semver"
            }
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  "published": "2026-02-03T01:15:57.757",
  "references": [
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      "url": "https://community.notepad-plus-plus.org/topic/27298/notepad-v8-8-9-vulnerability-fix",
      "tags": [
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    },
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      "url": "https://github.com/notepad-plus-plus/notepad-plus-plus/commit/bcf2aa68ef414338d717e20e059459570ed6c5ab",
      "tags": [
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    },
    {
      "url": "https://www.vulncheck.com/advisories/notepad-plus-plus-wingup-updater-lacks-update-integrity-verification",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "disclosure@vulncheck.com"
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    {
      "url": "https://notepad-plus-plus.org//news//clarification-security-incident/",
      "tags": [
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      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-15556",
      "tags": [
        "US Government Resource"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "disclosure@vulncheck.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-494"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Notepad++ versions prior to 8.8.9, when using the WinGUp updater, contain an update integrity verification vulnerability where downloaded update metadata and installers are not cryptographically verified. An attacker able to intercept or redirect update traffic can cause the updater to download and execute an attacker-controlled installer, resulting in arbitrary code execution with the privileges of the user."
    },
    {
      "lang": "es",
      "value": "Las versiones de Notepad++ anteriores a la 8.8.9, al usar el actualizador WinGUp, contienen una vulnerabilidad de verificación de integridad de actualización donde los metadatos y los instaladores de actualización descargados no se verifican criptográficamente. Un atacante capaz de interceptar o redirigir el tráfico de actualización puede hacer que el actualizador descargue y ejecute un instalador controlado por el atacante, lo que resulta en la ejecución de código arbitrario con los privilegios del usuario."
    }
  ],
  "lastModified": "2026-06-17T08:38:01.047",
  "cisaActionDue": "2026-03-05",
  "cisaExploitAdd": "2026-02-12",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:notepad-plus-plus:notepad\\+\\+:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "8.8.9"
            }
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          "operator": "OR"
        }
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  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
  "cisaVulnerabilityName": "Notepad++ Download of Code Without Integrity Check Vulnerability"
}