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CVE-2026-84869

Estado: AnalizadaCrítica (9.9)⚠ Explotación activa

A condition in the ScreenConnect client may allow files to be transferred and executed through an active remote session without authorization or Host confirmation in certain circumstances. ScreenConnect servers are not impacted.

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.

AV:N/PR:L exige T1210 (explotación de servicios remotos con privs). La descripción "transferencia y ejecución de archivos sin autorización" implica T1059 (ejecución de comandos) como impacto primario; T1570 por transferencia no autorizada; T1078 por contexto de acceso remoto comprometido.

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 ManagementDisable or Remove Feature or ProgramVulnerability ScanningThreat Intelligence ProgramRestrict Web-Based ContentNetwork Segmentation

Tecnologías afectadas (1)

Connectwise — Screenconnect

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-84869",
  "cveTags": [],
  "metrics": {
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          "options": [
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          "timestamp": "2026-09-10T00:00:00+00:00"
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
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          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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  "published": "2026-09-08T20:18:51.147",
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      "source": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49"
    },
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      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-84869",
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      "description": [
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          "value": "CWE-269"
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          "lang": "en",
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  "descriptions": [
    {
      "lang": "en",
      "value": "A condition in the ScreenConnect client may allow files to be transferred and executed through an active remote session without authorization or Host confirmation in certain circumstances. ScreenConnect servers are not impacted."
    }
  ],
  "lastModified": "2026-09-12T04:16:42.757",
  "cisaActionDue": "2026-09-14",
  "cisaExploitAdd": "2026-09-11",
  "configurations": [
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  "sourceIdentifier": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49",
  "cisaRequiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
  "cisaVulnerabilityName": "ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability"
}