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CVE-2026-52111

Estado: AplazadaCrítica (9.8)—

An issue in fast-note-sync-service <=2.13.7 allows a remote attacker to escalate privileges via the admin configuration endpoint exposes authTokenKey

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:N/AC:L/PR:N indica acceso remoto sin privilegios (T1190). El endpoint de admin expuesto permite escalar a administrador (T1068). Exposición de authTokenKey facilita suplantación de cuenta (T1078).

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

Privileged Account ManagementApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareApplication Developer GuidanceActive Directory Configuration

Tecnologías afectadas (1)

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

Fast-note-sync-service — Fast-note-sync-serviceAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-52111",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-52111",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-02T15:52:56.197872Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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      ]
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  ],
  "published": "2026-09-01T18:17:43.477",
  "references": [
    {
      "url": "https://gist.github.com/L4wCat/924c10c36d6d11651049787d547d411b",
      "source": "cve@mitre.org"
    },
    {
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      "source": "cve@mitre.org"
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      "value": "An issue in fast-note-sync-service <=2.13.7 allows a remote attacker to escalate privileges via the admin configuration endpoint exposes authTokenKey"
    }
  ],
  "lastModified": "2026-09-08T19:42:20.313",
  "sourceIdentifier": "cve@mitre.org"
}