CVE-2026-78236

Estado: AplazadaAlta (8.8)—

An insecure PIN derivation mechanism in ABR allows a low-privileged user to escalate privileges to administrator by communicating over Cross-Process Communication (XPC) while masquerading as an Apple-signed process.

CVSS

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

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.10%
Percentil entre todas las CVEs puntuadas: 1
Fecha de la puntuación: 3/10/2026

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.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation95 %
Impacto principalT1078 Valid Accountsstealth · persistence · privilege escalation · initial access90 %
Impacto secundarioT1098 Account Manipulationpersistence · privilege escalation75 %

AV:L/PR:L sin UI permite escalada local. XPC masquerading + insecure PIN derivation posibilita asumir identidad de proceso Apple-signed para obtener privilegios de administrador.

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

User Account Management Privileged Account Management Multi-factor Authentication Application Developer Guidance Active Directory Configuration User Training

Tecnologías afectadas (1)

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

Apple — ABR^AI

CWE

CWE-284, CWE-285, CWE-287, CWE-327

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-78236",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-78236",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-26T14:01:23.677810Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2
      }
    ]
  },
  "affected": [
    {
      "source": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4",
      "affectedData": [
        {
          "vendor": "Admin By Request (ABR)",
          "product": "Admin By Request (ABR)",
          "versions": [
            {
              "status": "affected",
              "version": "5.2.2 and below",
              "versionType": "macOS"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-08-26T08:16:46.600",
  "references": [
    {
      "url": "https://docs.adminbyrequest.com/security-advisories/abr-mac-26-01.htm",
      "source": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4"
    },
    {
      "url": "https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-110/",
      "source": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4"
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  "vulnStatus": "Deferred",
  "weaknesses": [
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        },
        {
          "lang": "en",
          "value": "CWE-285"
        },
        {
          "lang": "en",
          "value": "CWE-287"
        },
        {
          "lang": "en",
          "value": "CWE-327"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An insecure PIN derivation mechanism in ABR allows a low-privileged user to escalate privileges to administrator by communicating over Cross-Process Communication (XPC) while masquerading as an Apple-signed process."
    }
  ],
  "lastModified": "2026-09-03T16:59:26.287",
  "sourceIdentifier": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4"
}