CVE-2025-21014: 
NixOS vulnerability analysis and mitigation

CVE-2025-21014 is an improper export of an Android application component vulnerability in Samsung's Emergency SoS feature that allows local attackers to access sensitive information. It affects Samsung Android versions 13, 14, and 15 prior to the SMR Aug-2025 Release 1 patch. The vulnerability was published on August 6, 2025, and is addressed in the August 2025 Samsung Mobile Security Release. It carries a CVSS v3.1 base score of 5.5 (Medium) (Samsung Security, Feedly).

The root cause is classified as CWE-926 (Improper Export of Android Application Components), where the Emergency SoS application component is exported without adequate access controls, making it accessible to other applications on the device. A local attacker with low privileges can interact with the improperly exported component — such as an Activity, Service, or BroadcastReceiver — to read sensitive information that should be restricted to the Emergency SoS application. No user interaction is required, and the attack complexity is low, making exploitation straightforward for any app installed on the device (Samsung Security, Feedly).

Successful exploitation allows a local attacker to access sensitive information handled by the Emergency SoS component, which may include emergency contact details, location data, or other personal information associated with the SoS feature. The impact is limited to confidentiality — there is no integrity or availability impact. The attack is constrained to the local device and does not directly enable lateral movement, but sensitive data exposure could facilitate further targeted attacks against the device owner (Samsung Security).

No public proof-of-concept exploit code or evidence of in-the-wild exploitation has been reported for CVE-2025-21014. The EPSS score is approximately 0.016% (0.000160), indicating a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. No threat actor attribution has been identified (Feedly).

1. Reconnaissance: Identify a target Samsung device running Android 13, 14, or 15 with a firmware version prior to SMR Aug-2025 Release 1, where the Emergency SoS component is improperly exported.
2. Develop or install a malicious app: Create or install a malicious Android application on the target device (requires physical access or social engineering to install a sideloaded APK, or exploitation of another vulnerability to install without user consent).
3. Enumerate exported components: Use Android tooling (e.g., adb shell dumpsys package <emergency_sos_package>) or static analysis of the Emergency SoS APK to identify the improperly exported component (Activity, Service, or BroadcastReceiver).
4. Invoke the exported component: From the malicious app, send an explicit Intent targeting the exported Emergency SoS component (e.g., Intent intent = new Intent(); intent.setComponent(new ComponentName("com.samsung.android.emergencysos", "<ExportedComponentName>"));).
5. Extract sensitive information: Capture the response or data returned by the component, which may include emergency contacts, location data, or other personal information stored by the Emergency SoS feature (Samsung Security).

Samsung has released a patch in the SMR Aug-2025 Release 1 security update for Android 13, 14, 15, and 16. Users should apply the August 2025 Samsung security patch as soon as it becomes available for their device. No configuration-based workaround has been published; upgrading to the patched firmware is the recommended remediation. Enterprise administrators should use Mobile Device Management (MDM) solutions to enforce timely security patch compliance on managed Samsung devices (Samsung Security).