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CVE-2026-77552

Estado: AplazadaCrítica (9.8)—

A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi Enterprise Audio/Video Bridge to execute a Command Injection on the device.

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.

Vulnerabilidad remota sin autenticación (AV:N, PR:N, UI:N) en aplicación expuesta (UniFi Bridge). Command Injection permite ejecución de comandos y potencial escalada de privilegios en el dispositivo.

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 ManagementExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareVulnerability Scanning

Tecnologías afectadas (1)

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

UI — Unifi Enterprise Audio Video BridgeAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-77552",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-77552",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-26T12:45:48.275670Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "fe490ce8-0395-4072-90d8-2707e1bdf984",
        "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": "fe490ce8-0395-4072-90d8-2707e1bdf984",
      "affectedData": [
        {
          "vendor": "Ubiquiti Inc",
          "product": "UniFi Enterprise Audio/Video Bridge",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.0.11",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-08-26T11:16:39.167",
  "references": [
    {
      "url": "https://community.ui.com/releases/Security-Advisory-Bulletin-067/fc4a3488-7c43-4628-8bab-f715e96dbfc9",
      "source": "fe490ce8-0395-4072-90d8-2707e1bdf984"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "fe490ce8-0395-4072-90d8-2707e1bdf984",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi Enterprise Audio/Video Bridge to execute a Command Injection on the device."
    }
  ],
  "lastModified": "2026-08-28T18:49:15.340",
  "sourceIdentifier": "fe490ce8-0395-4072-90d8-2707e1bdf984"
}