Security readout for executives and security teams
Plain-English summary
This CVE describes Samsung Android 7.x and 8.x devices allowing clipboard access while the screen is locked through copy-and-paste behavior. The main business risk is exposure of sensitive data already present in the clipboard if someone can interact with the locked device. Public severity and CVSS data are not provided.
Executive priority
Treat this as a targeted mobile data-exposure risk rather than a network-wide emergency. Prioritize if the organization still uses older Samsung Android 7.x or 8.x devices, especially where devices handle credentials, customer data, or regulated information.
Technical view
CVE-2018-21045 maps to Samsung SVE-2018-13381 from December 2018. The described issue is clipboard access in lockscreen state via copy-and-paste on Samsung mobile devices running N(7.x) and O(8.x) software. The source bundle does not provide CVSS, CWE, detailed affected models, or patch mechanics.
Likely exposure
Exposure appears limited to Samsung mobile devices running Android N(7.x) or O(8.x). The source bundle does not identify specific models, carrier builds, CPEs, or enterprise management configurations, so asset inventory and Samsung patch status are needed.
Exploitation context
The provided sources do not report active exploitation, and CISA KEV is false. The described access path implies local interaction with a locked device and clipboard contents, but the bundle does not provide exploit prerequisites beyond the copy-and-paste lockscreen condition.
Researcher notes
Evidence is sparse: no CVSS, CWE, model list, CPEs, or detailed advisory text is included. Avoid extrapolating beyond Samsung Android 7.x/8.x lockscreen clipboard access. Use Samsung SVE-2018-13381 as the vendor tracking identifier when searching internal patch and MDM data.
Mitigation direction
- Check Samsung guidance for SVE-2018-13381 and applicable December 2018 updates.
- Update affected Samsung devices to a vendor-supported security patch level.
- Prioritize remediation for devices used with sensitive apps or shared physical access.
- Reduce sensitive clipboard retention through user training or mobile policy where available.
Validation and detection
- Inventory Samsung devices running Android 7.x or 8.x software.
- Check each device security patch level against Samsung SVE-2018-13381 guidance.
- Confirm whether affected devices remain in active business use.
- Review MDM records for unmanaged or unsupported Samsung devices.
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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CVE-2018-21045 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.