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CVE-2026-78944

Estado: AnalizadaAlta (8.8)—

Use after free in DevTools in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitrary code inside the sandbox via a crafted Chrome extension. (Chromium security severity: Medium)

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.

AV:N, UI:R (requiere interacción del usuario) y ejecución de código arbitrario en sandbox mediante extensión Chrome preparada son características de T1203 (explotación para ejecución en cliente). T1059 cubre la ejecución de código resultante.

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 Web-Based ContentPrivileged Account ManagementLimit Software InstallationExecution PreventionBehavior Prevention on EndpointDisable or Remove Feature or Program

Tecnologías afectadas (1)

Google — Chrome

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-78944",
  "cveTags": [],
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
            },
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            },
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            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-26T00:00:00+00:00"
        }
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
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      "source": "chrome-cve-admin@google.com",
      "affectedData": [
        {
          "vendor": "Google",
          "product": "Chrome",
          "versions": [
            {
              "status": "affected",
              "version": "152.0.7977.65",
              "lessThan": "152.0.7977.65",
              "versionType": "custom"
            }
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  "published": "2026-08-25T21:17:50.297",
  "references": [
    {
      "url": "https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
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    },
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      "url": "https://issues.chromium.org/issues/520052954",
      "tags": [
        "Permissions Required"
      ],
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      "description": [
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      "value": "Use after free in DevTools in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitrary code inside the sandbox via a crafted Chrome extension. (Chromium security severity: Medium)"
    }
  ],
  "lastModified": "2026-08-27T04:17:04.620",
  "configurations": [
    {
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        {
          "negate": false,
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  ],
  "sourceIdentifier": "chrome-cve-admin@google.com"
}