AndroidOperating system · Google

CVE-2017-18680

HIGH · 7.1 CVSS v3.1 Published 2020-04-07
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
73/100
Remediation priority · Elevated
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An issue was discovered on Samsung mobile devices with L(5.0/5.1) and M(6.0) (tablets) software. The lockscreen interface allows Add User actions, leading to an unintended ability to access user data in external storage. The Samsung ID is SVE-2016-7797 (March 2017).

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

On Samsung tablets running Android L (5.0/5.1) and M (6.0), the lockscreen interface contains a flaw that permits the 'Add User' action to be executed without proper authentication. This allows a physically present attacker to add a new user, bypassing the lockscreen and gaining access to user data stored on external storage.

MitigationApply the Samsung security update (SVE-2016-7797, March 2017) to affected devices. For unsupported devices, implement physical access controls and consider restricting device placement in secure areas.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
AndroidOperating system
Affected:= 5.0= 5.1= 6.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify device manufacturer and type
    Check device settings under Settings > About tablet (or About phone) > Model number to confirm the device is made by Samsung and is a tablet
    Affected if Device is not a Samsung tablet - not vulnerable to this specific flaw
  2. Check Android version
    Go to Settings > About tablet > Android version and verify the exact version number displayed
    Affected if Android version is NOT 5.0, 5.1, or 6.0 - not vulnerable to this flaw
  3. Confirm lockscreen is in use
    Go to Settings > Lock screen > Screen lock type and verify a lock method (Pattern, PIN, Password, or Fingerprint) is enabled
    Affected if Lockscreen is disabled or set to 'None' - the bypass does not apply since there is no lock to bypass
  4. Verify device has external storage
    Check if the tablet has an SD card inserted or shows external storage in Settings > Storage. The flaw allows access to data on external storage
    Affected if Device has no external storage - the specific data exposure aspect of this flaw does not apply

A Samsung tablet is affected if it runs Android 5.0, 5.1, or 6.0, has a lockscreen enabled, and has external storage accessible, allowing an attacker with physical access to add a user via the lockscreen bypass.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the Samsung security update (SVE-2016-7797, March 2017) to affected devices. For unsupported devices, implement physical access controls and consider restricting device placement in secure areas.

Fix this in Android Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2017-18680 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2017-18680 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data