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CVE Record

CVE-2018-21062: An issue was discovered on Samsung mobile devices with N(7.x) and O(8.x) software.

An issue was discovered on Samsung mobile devices with N(7.x) and O(8.x) software. When biometric authentication is disabled, an attacker can view Streams content (e.g., a Gallery slideshow) of a locked Secure Folder via a connection to an external device. The Samsung ID is SVE-2018-11766 (August 2018).

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This flaw can expose private Secure Folder media on affected Samsung phones even while the folder is locked. The source describes viewing Streams content, such as a Gallery slideshow, through an external-device connection when biometric authentication is disabled. It is mainly a confidentiality issue for older Samsung Android 7.x and 8.x devices.

Executive priority

Treat this as a targeted privacy exposure on legacy Samsung mobile fleets, not an internet-scale emergency. Prioritize executives, legal, finance, and field users who store sensitive media or documents in Secure Folder on older devices.

Technical view

CVE-2018-21062 is Samsung SVE-2018-11766. On Samsung mobile devices with N(7.x) and O(8.x) software, locked Secure Folder Streams content may be visible through an external device connection if biometric authentication is disabled. The source bundle provides no CVSS, CWE, CPE, or detailed affected model list.

Likely exposure

Likely exposure is limited to Samsung mobile devices running Android N(7.x) or O(8.x), using Secure Folder, with biometric authentication disabled. The bundle does not identify exact models, firmware builds, or CPEs, so validation needs device-level inventory and Samsung advisory review.

Exploitation context

The bundle does not report active exploitation, and the CVE is not marked KEV. The described attack requires a locked affected device, biometric authentication disabled, and connection to an external device. No exploit details or public exploitation evidence are provided in the supplied sources.

Researcher notes

Evidence is sparse: no CVSS, CWE, model list, CPE, exploit status, or detailed fix text is included. Analysis should stay anchored to Samsung SVE-2018-11766 and avoid broad Android or all-Samsung assumptions. Further confirmation requires Samsung advisory details for the relevant device builds.

Mitigation direction

  • Review Samsung guidance for SVE-2018-11766 and affected device models.
  • Apply the relevant Samsung security update where available.
  • Prefer enabling biometric authentication for Secure Folder where policy allows.
  • Restrict physical and external-device access to managed Samsung devices.
  • Retire or isolate unsupported Android 7.x and 8.x Samsung devices.

Validation and detection

  • Inventory Samsung devices still running Android 7.x or 8.x software.
  • Check each device security patch level against Samsung's August 2018 advisory.
  • Confirm whether Secure Folder is enabled on in-scope devices.
  • Confirm whether biometric authentication is disabled for Secure Folder.
  • Document devices without vendor-supported updates as residual risk.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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