Security readout for executives and security teams
Plain-English summary
A flaw in Samsung Secure Folder on Samsung mobile devices running Android N 7.x could allow startup authentication to be bypassed. Business impact is potential exposure of data users expected Secure Folder to protect. Public sources provide no CVSS score, exploit evidence, or detailed model list.
Executive priority
Treat this as a legacy mobile exposure review item, not an emergency from current evidence. Prioritize regulated users, executives, and devices holding sensitive files, because Secure Folder trust is central to the business impact.
Technical view
CVE-2018-21038 maps to Samsung SVE-2018-11628 from December 2018. The reported weakness is Secure Folder startup logic allowing authentication bypass on Samsung mobile devices with N 7.x software. The bundle does not include CWE, CVSS, affected model details, or remediation specifics.
Likely exposure
Exposure appears limited to Samsung mobile devices running Android N 7.x with Secure Folder present or used. The source bundle does not identify specific models, carrier builds, enterprise configurations, or whether later software versions are affected.
Exploitation context
The provided sources do not state active exploitation, public exploit availability, or CISA KEV listing. Because the issue is an authentication bypass in a local mobile app context, prioritize validating managed legacy Samsung devices before assuming broad enterprise exposure.
Researcher notes
Evidence is sparse: no CVSS, CWE, affected model list, exploit status, or fix text is provided. Analysis should remain tied to Samsung SVE-2018-11628 and Android N 7.x Secure Folder startup authentication behavior.
Mitigation direction
- Check Samsung guidance for SVE-2018-11628 and CVE-2018-21038.
- Apply applicable Samsung security updates where available from the vendor.
- Inventory and retire unsupported Samsung Android 7.x devices.
- Avoid storing sensitive enterprise data in unvalidated Secure Folder deployments.
Validation and detection
- Identify managed Samsung devices still running Android N 7.x.
- Confirm whether Secure Folder is installed, enabled, or required.
- Compare device security patch status against Samsung’s December 2018 advisory.
- Document any devices that cannot receive vendor-supported updates.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-21038 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://security.samsungmobile.com/securityUpdate.smsbCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.