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How the CVE Works:
The vulnerability exists within Android’s component resolution mechanism. Multiple system locations contain a race condition between the time an intent’s target is verified and when it is finally delivered. An attacker can craft a malicious app that rapidly toggles the exported state or attributes of a component (like an activity or service) after the initial security check passes but before the intent is processed. This allows the attacker to bypass the intended intent filters and reach protected components that should not be reachable, leading to local elevation of privileges without requiring any user interaction or additional permissions.
Platform: Android
Version: Not Specified
Vulnerability: Intent Filter Bypass
Severity: Critical
date: 12/08/2025
Prediction: 2025-12-22
What Undercode Say:
`adb shell dumpsys package | grep -A10 -B2 “exported\|permission”`
`am start -n com.example.target/.InternalActivity –ez malicious true`
Code snippet hinting at a timing loop:
for (int i = 0; i < 1000; i++) {
component.setExported(false);
// Trigger intent resolution race
sendIntent();
component.setExported(true);
}
How Exploit:
1. Install malicious application.
2. Rapidly toggle component exported flag.
3. Launch crafted intent repeatedly.
4. Win race condition, bypass filter.
5. Access privileged internal component.
6. Execute escalated operations.
Protection from this CVE:
Apply vendor security update.
Implement additional synchronization.
Validate component state atomically.
Harden intent resolution logic.
Impact:
Local Privilege Escalation.
Bypass of component isolation.
No user interaction required.
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Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
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