Samsung Mobile Devices: Improper Export of Android Application Components
CVE-2026-21059 is a high-severity improper export of android application components vulnerability in Samsung Mobile Devices from Samsung, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 0.13% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Samsung Mobile Devices you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on security.samsungmobile.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Samsung Mobile | Samsung Mobile Devices | Not specified in the record | Not stated |
| Samsung | Android | 16.0 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 6.9 | Medium | CNA (samsung.com) |
| CVSS 3.1 | 7.1 | High | NVD |
Official description
Improper export of android application components in Samsung Contacts prior to SMR Aug-2026 Release 1 allows local attackers to delete file with Samsung Contacts' privilege.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Export of Android Application Components
The Android application exports a component for use by other applications, but does not properly restrict which applications can launch the component or access the data it contains.
How developers prevent this class of flaw
- If they do not need to be shared by other applications, explicitly mark components with android:exported=false in the application manifest.
- If you only intend to use exported components between related apps under your control, use android:protectionLevel=signature in the xml manifest to restrict access to applications signed by you.
- Limit Content Provider permissions (read/write) as appropriate.
More Improper Export of Android Application Components vulnerabilities (CWE-926)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Samsung Mobile Devices
- 8.6 High severity
- 8.6 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 7.8 High severity
- 7.8 High severity
Recent Improper Export of Android Application Components vulnerabilities
- 7.1 High severity
- 7.8 High severity
- 8.5 High severity
- 8.3 High severity
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