Security readout for executives and security teams
Plain-English summary
A flaw in Samsung Account could let an attacker misuse an Android intent flow to reach contacts and a file provider through SettingWebView. The public record names affected versions and fixed thresholds, but does not describe attack prerequisites or observed exploitation. Business risk is mainly privacy exposure on unpatched Samsung devices.
Executive priority
Treat as a moderate privacy-risk remediation item for Samsung-heavy fleets. There is no cited active exploitation, but the affected data types justify prompt update validation.
Technical view
CVE-2021-25403 is an intent redirection vulnerability in Samsung Account. Affected versions are before 10.8.0.4 on Android P and below, and before 12.2.0.9 on Android Q and above. The issue is mapped to CWE-200 and involves access to contacts and file provider via SettingWebView.
Likely exposure
Exposure is limited to Samsung Android devices running Samsung Account below the fixed versions. The affected fleet depends on installed Samsung Account version and Android generation, not only OS patch level.
Exploitation context
The source bundle does not cite active exploitation, public exploit availability, or CISA KEV listing. It also does not define whether the attacker must have local app execution, user interaction, or another prerequisite.
Researcher notes
Public details are sparse. The record identifies intent redirection through SettingWebView and data exposure involving contacts and file provider, but omits CVSS, exploitability conditions, and detailed patch mechanics.
Mitigation direction
- Update Samsung Account to the fixed version for the device Android generation.
- Apply Samsung’s May 2021 security maintenance release or later vendor guidance.
- Prioritize managed Samsung devices that store corporate contacts or files.
- Retire or isolate devices that cannot receive Samsung Account updates.
Validation and detection
- Inventory Samsung devices and record Android version and Samsung Account version.
- Compare Samsung Account versions against 10.8.0.4 and 12.2.0.9 thresholds.
- Confirm the May 2021 Samsung bulletin coverage applies to each device model.
- Check mobile management telemetry for outdated Samsung Account packages.
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-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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-2021-25403 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=5CVE 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.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.