Security readout for executives and security teams
Plain-English summary
Samsung Internet before version 14.2 had an unprotected internal component. A malicious or untrusted Android app on the same device could access internal Samsung Internet files. The public record does not provide CVSS scoring, file details, or confirmed business impact.
Executive priority
Treat this as a mobile endpoint hygiene issue rather than a confirmed emergency. Prioritize patching managed devices below Samsung Internet 14.2, especially in environments allowing sideloaded or unmanaged apps.
Technical view
CVE-2021-25445 is described as an unprotected component issue in Samsung Internet before 14.2, mapped to CWE-287. The stated impact is access to internal browser files by an untrusted application. The source bundle does not identify affected Android versions, file paths, privileges, or a proof of concept.
Likely exposure
Exposure is limited to devices running Samsung Internet versions earlier than 14.2, especially where users can install untrusted applications. The sources do not identify server-side exposure or non-Samsung-Internet products.
Exploitation context
The CVE is not listed as KEV in the supplied bundle, and no cited source confirms active exploitation. The attack scenario requires an untrusted application already present on the device.
Researcher notes
Public evidence is sparse: no CVSS vector, exploit details, affected platform matrix, or patch mechanics are included in the provided sources. The reliable facts are the affected product, pre-14.2 version boundary, CWE-287 mapping, and untrusted-app access to internal files.
Mitigation direction
- Update Samsung Internet to version 14.2 or later where available.
- Review Samsung's August 2021 advisory for vendor guidance.
- Inventory managed Android devices for Samsung Internet versions below 14.2.
- Reduce installation of untrusted applications on affected devices.
Validation and detection
- Check installed Samsung Internet versions across managed Android devices.
- Confirm no device remains on Samsung Internet earlier than 14.2.
- Review mobile app inventory for untrusted or sideloaded applications.
- Track Samsung Mobile guidance for any additional remediation details.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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-2021-25445 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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 Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.