Security readout for executives and security teams
Plain-English summary
Samsung Smart Touch Call before version 1.0.0.5 had an access-control flaw that could let an arbitrary webpage load inside the app’s WebView. The public record does not provide CVSS scoring, affected device models, attacker prerequisites, or confirmed exploitation.
Executive priority
Handle as mobile hygiene unless Samsung exposure is broad in your fleet. The lack of CVSS and exploit evidence lowers urgency, but unmanaged vulnerable app versions should still be cleared during normal patch cycles.
Technical view
CVE-2021-25448 is classified as CWE-284 improper access control in Samsung Mobile Smart Touch Call. Versions before 1.0.0.5 are affected. The documented behavior is arbitrary webpage loading in a WebView; sources do not describe privilege impact, trigger path, or exploit mechanics.
Likely exposure
Exposure is limited to environments with Samsung Smart Touch Call installed below version 1.0.0.5. The sources do not identify specific Samsung device models, Android versions, or deployment prevalence.
Exploitation context
CISA KEV is false, and the provided sources do not report active exploitation or public exploit availability. The record only states arbitrary webpage loading in WebView, without prerequisites or user-interaction details.
Researcher notes
The source record is sparse. Do not assume device scope, exploitability, or impact beyond arbitrary WebView page loading. Useful follow-up research would focus on Samsung bulletin details, package identification, and whether enterprise fleets actually contain the affected app.
Mitigation direction
- Update Smart Touch Call to version 1.0.0.5 or later where available.
- Check Samsung Mobile’s August 2021 security bulletin for official device guidance.
- Inventory managed Samsung devices for Smart Touch Call presence and version.
- Restrict unneeded vulnerable app use where updates are unavailable.
Validation and detection
- Confirm installed Smart Touch Call versions on managed Samsung devices.
- Verify update status against the 1.0.0.5 fixed-version boundary.
- Review mobile management inventory for devices missing Samsung security updates.
- Document any unsupported devices needing compensating controls or retirement.
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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CWE-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-25448 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/serviceWeb.smsb?year=2021&month=8CVE reference · x_refsource_MISC
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.
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.