CVE-2026-13673

Estado: Pendiente de análisisAlta (8.8)—

An incorrect permission assignment for critical resource vulnerability in LDAP API in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote authenticated users to read or write arbitrary files and conduct denial-of-service attacks.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 8.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.39%
Percentil entre todas las CVEs puntuadas: 31
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).

🎯 Técnicas ATT&CK

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

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement85 %
Impacto principalT1222 File and Directory Permissions Modificationdefense impairment90 %
Impacto secundarioT1499.004 Application or System Exploitationimpact75 %
Impacto secundarioT1565.001 Stored Data Manipulationimpact80 %

CWE-732 (permisos incorrectos) en LDAP API permite a usuarios autenticados remotos leer/escribir archivos arbitrarios y DoS. Explotación de servicio remoto con privilegios (T1210). Impactos: modificación de permisos (T1222), manipulación de datos (T1565.001) y denegación de servicio (T1499.004).

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

Restrict File and Directory Permissions Privileged Account Management Vulnerability Scanning Threat Intelligence Program Remote Data Storage Network Segmentation

Tecnologías afectadas (1)

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

Synology — Diskstation Manager^AI

CWE

CWE-732

Referencias

https://www.synology.com/en-global/security/advisory/Synology_SA_26_13

JSON original (NVD)

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        "ssvcData": {
          "id": "CVE-2026-13673",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-18T19:12:03.564321Z"
        }
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          "vectorString": "CVSS:3.1/AV:N/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"
        },
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        "exploitabilityScore": 2.8
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  "affected": [
    {
      "source": "security@synology.com",
      "affectedData": [
        {
          "vendor": "Synology",
          "product": "DiskStation Manager (DSM)",
          "versions": [
            {
              "status": "affected",
              "version": "7.4",
              "lessThan": "7.4-90075",
              "versionType": "semver"
            },
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      "source": "security@synology.com"
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  "lastModified": "2026-09-18T20:17:07.867",
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}