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CVE-2019-9436

Status: ModifiedMedium (6.7)—
Severity6.7Medium · CVSS 3.1
Exploitation probability0.17 %higher than 6% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

In the Android kernel in the bootloader there is a possible secure boot bypass. This could lead to local escalation of privilege with System execution privileges needed. User interaction is needed for exploitation.

CVSS

Base score
6.7
Version
3.1
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.17 %
Percentile among all scored CVEs
6
Score date
10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Google — Android

CWEs

References

Show 2 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2019-9436",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
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        "acInsufInfo": false,
        "impactScore": 6.4,
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      }
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
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        "exploitabilityScore": 0.8
      }
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  "affected": [
    {
      "source": "security@android.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Android",
          "versions": [
            {
              "status": "affected",
              "version": "Android kernel"
            }
          ]
        }
      ]
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  ],
  "published": "2019-09-06T22:15:12.643",
  "references": [
    {
      "url": "https://source.android.com/security/bulletin/pixel/2019-09-01",
      "tags": [
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      ],
      "source": "security@android.com"
    },
    {
      "url": "https://source.android.com/security/bulletin/pixel/2019-09-01",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
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      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Android kernel in the bootloader there is a possible secure boot bypass. This could lead to local escalation of privilege with System execution privileges needed. User interaction is needed for exploitation."
    },
    {
      "lang": "es",
      "value": "En el kernel de Android en el gestor de arranque hay una posible omisión del arranque seguro. Esto podría llevar a un escalado de privilegios local necesitando privilegios de ejecución System. No se necesita interacción del usuario para explotarlo."
    }
  ],
  "lastModified": "2026-06-17T02:43:44.103",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26"
            }
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          "operator": "OR"
        }
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  ],
  "sourceIdentifier": "security@android.com"
}