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CVE-2016-3887

Status: ModifiedHigh (7.8)—
Severity7.8High · CVSS 3.0
Exploitation probability0.48 %higher than 40% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

providers/settings/SettingsProvider.java in Android 7.0 before 2016-09-01 does not properly enforce the DISALLOW_CONFIG_VPN setting, which allows attackers to bypass an intended always-on VPN state via a crafted application, aka internal bug 29899712.

CVSS

Base score
7.8
Version
3.0
Vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.48 %
Percentile among all scored CVEs
40
Score date
10/23/2026

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 8 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2016-3887",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:L/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": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@android.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-09-11T21:59:31.870",
  "references": [
    {
      "url": "http://source.android.com/security/bulletin/2016-09-01.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@android.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/92872",
      "source": "security@android.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1036763",
      "source": "security@android.com"
    },
    {
      "url": "https://android.googlesource.com/platform/frameworks/base/+/335702d106797bce8a88044783fa1fc1d5f751d0",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "security@android.com"
    },
    {
      "url": "http://source.android.com/security/bulletin/2016-09-01.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/92872",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1036763",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://android.googlesource.com/platform/frameworks/base/+/335702d106797bce8a88044783fa1fc1d5f751d0",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "providers/settings/SettingsProvider.java in Android 7.0 before 2016-09-01 does not properly enforce the DISALLOW_CONFIG_VPN setting, which allows attackers to bypass an intended always-on VPN state via a crafted application, aka internal bug 29899712."
    },
    {
      "lang": "es",
      "value": "providers/settings/SettingsProvider.java en Android 7.0 en versiones anteriores a 2016-09-01 no hace cumplir adecuadamente el ajuste DISALLOW_CONFIG_VPN, lo que permite a atacantes eludir un estado siempre destinado al VPN a través de una aplicación manipulada, vulnerabilidad también conocida como error interno 29899712."
    }
  ],
  "lastModified": "2026-06-17T00:46:30.937",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:google:android:7.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "09E6085C-A61E-4A89-BF80-EDD9A7DF1E47"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@android.com"
}